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GraphQL API Response Error: Expected a Value of Type “URL” but Received: (Empty String)

在 GraphQL API 响应报错：Expected a value of type \"URL\" but received: (empty string)

作者：

永夜

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1. The GraphQL API response returned an error: Expected a value of type \”URL\” but received: (empty string). See Figure 1.

The GraphQL API response returned an error: Expected a value of type \"URL\" but received: (empty string)
Figure 1
JSON

{
  "errors": [
    {
      "debugMessage": "Expected a value of type \"URL\" but received: (empty string)",
      "message": "Internal server error",
      "extensions": {
        "category": "internal"
      },
      "locations": [
        {
          "line": 128,
          "column": 3
        }
      ],
      "path": [
        "onlineStore",
        "theme",
        "themeSettingsCategories",
        4,
        "settings",
        0,
        "imagePickerValue"
      ],
      "trace": [
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 786,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeLeafValue(GraphQLType: URL, (empty string))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 654,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: URL, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(7), (empty string))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 557,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValueCatchingError(GraphQLType: URL, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(7), (empty string))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1195,
          "call": "GraphQL\\Executor\\ReferenceExecutor::resolveField(GraphQLType: ThemeSettingImagePicker, array(7), instance of ArrayObject(1), array(7))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1145,
          "call": "GraphQL\\Executor\\ReferenceExecutor::executeFields(GraphQLType: ThemeSettingImagePicker, array(7), array(6), instance of ArrayObject(7))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1106,
          "call": "GraphQL\\Executor\\ReferenceExecutor::collectAndExecuteSubfields(GraphQLType: ThemeSettingImagePicker, instance of ArrayObject(1), array(6), array(7))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 974,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeObjectValue(GraphQLType: ThemeSettingImagePicker, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(6), array(7))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 789,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeAbstractValue(GraphQLType: ThemeSetting, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(6), array(7))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 741,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: ThemeSetting, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(6), array(7))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 654,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: ThemeSetting, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(6), array(7))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 887,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValueCatchingError(GraphQLType: ThemeSetting, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(6), array(7))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 761,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeListValue(GraphQLType: ThemeSetting, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(5), instance of Illuminate\\Support\\Collection(1))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 741,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: ThemeSetting, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(5), instance of Illuminate\\Support\\Collection(1))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 654,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: ThemeSetting, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(5), instance of Illuminate\\Support\\Collection(1))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 557,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValueCatchingError(GraphQLType: ThemeSetting, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(5), instance of Illuminate\\Support\\Collection(1))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1195,
          "call": "GraphQL\\Executor\\ReferenceExecutor::resolveField(GraphQLType: ThemeSettingsCategory, array(3), instance of ArrayObject(1), array(5))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1145,
          "call": "GraphQL\\Executor\\ReferenceExecutor::executeFields(GraphQLType: ThemeSettingsCategory, array(3), array(4), instance of ArrayObject(4))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1106,
          "call": "GraphQL\\Executor\\ReferenceExecutor::collectAndExecuteSubfields(GraphQLType: ThemeSettingsCategory, instance of ArrayObject(1), array(4), array(3))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 793,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeObjectValue(GraphQLType: ThemeSettingsCategory, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(4), array(3))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 741,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: ThemeSettingsCategory, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(4), array(3))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 654,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: ThemeSettingsCategory, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(4), array(3))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 887,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValueCatchingError(GraphQLType: ThemeSettingsCategory, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(4), array(3))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 761,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeListValue(GraphQLType: ThemeSettingsCategory, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(3), instance of Illuminate\\Support\\Collection(10))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 741,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: ThemeSettingsCategory, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(3), instance of Illuminate\\Support\\Collection(10))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 654,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: ThemeSettingsCategory, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(3), instance of Illuminate\\Support\\Collection(10))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 557,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValueCatchingError(GraphQLType: ThemeSettingsCategory, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(3), instance of Illuminate\\Support\\Collection(10))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1195,
          "call": "GraphQL\\Executor\\ReferenceExecutor::resolveField(GraphQLType: OnlineStoreTheme, array(11), instance of ArrayObject(1), array(3))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1145,
          "call": "GraphQL\\Executor\\ReferenceExecutor::executeFields(GraphQLType: OnlineStoreTheme, array(11), array(2), instance of ArrayObject(12))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1106,
          "call": "GraphQL\\Executor\\ReferenceExecutor::collectAndExecuteSubfields(GraphQLType: OnlineStoreTheme, instance of ArrayObject(1), array(2), array(11))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 793,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeObjectValue(GraphQLType: OnlineStoreTheme, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(2), array(11))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 654,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: OnlineStoreTheme, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(2), array(11))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 557,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValueCatchingError(GraphQLType: OnlineStoreTheme, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(2), array(11))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1195,
          "call": "GraphQL\\Executor\\ReferenceExecutor::resolveField(GraphQLType: OnlineStore, array(0), instance of ArrayObject(1), array(2))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1145,
          "call": "GraphQL\\Executor\\ReferenceExecutor::executeFields(GraphQLType: OnlineStore, array(0), array(1), instance of ArrayObject(2))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1106,
          "call": "GraphQL\\Executor\\ReferenceExecutor::collectAndExecuteSubfields(GraphQLType: OnlineStore, instance of ArrayObject(1), array(1), array(0))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 793,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeObjectValue(GraphQLType: OnlineStore, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(1), array(0))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 741,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: OnlineStore, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(1), array(0))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 654,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValue(GraphQLType: OnlineStore, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(1), array(0))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 557,
          "call": "GraphQL\\Executor\\ReferenceExecutor::completeValueCatchingError(GraphQLType: OnlineStore, instance of ArrayObject(1), instance of GraphQL\\Type\\Definition\\ResolveInfo, array(1), array(0))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 1195,
          "call": "GraphQL\\Executor\\ReferenceExecutor::resolveField(GraphQLType: Query, null, instance of ArrayObject(1), array(1))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 264,
          "call": "GraphQL\\Executor\\ReferenceExecutor::executeFields(GraphQLType: Query, null, array(0), instance of ArrayObject(2))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\ReferenceExecutor.php",
          "line": 215,
          "call": "GraphQL\\Executor\\ReferenceExecutor::executeOperation(instance of GraphQL\\Language\\AST\\OperationDefinitionNode, null)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\Executor\\Executor.php",
          "line": 156,
          "call": "GraphQL\\Executor\\ReferenceExecutor::doExecute()"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\GraphQL.php",
          "line": 162,
          "call": "GraphQL\\Executor\\Executor::promiseToExecute(instance of GraphQL\\Executor\\Promise\\Adapter\\SyncPromiseAdapter, instance of GraphQL\\Type\\Schema, instance of GraphQL\\Language\\AST\\DocumentNode, null, instance of Nuwave\\Lighthouse\\Schema\\Context, array(1), 'OnlineStoreTheme', null)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\webonyx\\graphql-php\\src\\GraphQL.php",
          "line": 94,
          "call": "GraphQL\\GraphQL::promiseToExecute(instance of GraphQL\\Executor\\Promise\\Adapter\\SyncPromiseAdapter, instance of GraphQL\\Type\\Schema, instance of GraphQL\\Language\\AST\\DocumentNode, null, instance of Nuwave\\Lighthouse\\Schema\\Context, array(1), 'OnlineStoreTheme', null, array(29))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\nuwave\\lighthouse\\src\\GraphQL.php",
          "line": 268,
          "call": "GraphQL\\GraphQL::executeQuery(instance of GraphQL\\Type\\Schema, instance of GraphQL\\Language\\AST\\DocumentNode, null, instance of Nuwave\\Lighthouse\\Schema\\Context, array(1), 'OnlineStoreTheme', null, array(29))"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\nuwave\\lighthouse\\src\\GraphQL.php",
          "line": 203,
          "call": "Nuwave\\Lighthouse\\GraphQL::executeParsedQuery(instance of GraphQL\\Language\\AST\\DocumentNode, instance of Nuwave\\Lighthouse\\Schema\\Context, array(1), null, 'OnlineStoreTheme')"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\nuwave\\lighthouse\\src\\GraphQL.php",
          "line": 162,
          "call": "Nuwave\\Lighthouse\\GraphQL::parseAndExecuteQuery('query OnlineStoreTheme($themeId: ID!) {\n  onlineStore {\n    theme(id: $themeId) {\n      id\n      editable\n      createdAt\n      editedAt\n      name\n      role\n      previewable\n      url\n      themeStoreThemeId\n      metadata {\n        author\n        description\n        documentationUrl\n        logoUrl\n        name\n        supportEmail\n        supportUrl\n        version\n        __typename\n      }\n      themeSettingsCategories {\n        ...ThemeSettingsCategory\n        __typename\n      }\n      __typename\n    }\n    __typename\n  }\n  __typename\n}\n\nfragment ThemeSettingsCategory on ThemeSettingsCategory {\n  id\n  title\n  settings {\n    ...ThemeSetting\n    __typename\n  }\n  __typename\n}\n\nfragment ThemeSetting on ThemeSetting {\n  ... on ThemeSettingHeader {\n    ...ThemeSettingHeader\n    __typename\n  }\n  ... on ThemeSettingCollection {\n    ...ThemeSettingCollection\n    __typename\n  }\n  ... on ThemeSettingColor {\n    ...ThemeSettingColor\n    __typename\n  }\n  ... on ThemeSettingFont {\n    ...ThemeSettingFont\n    __typename\n  }\n  ... on ThemeSettingImage {\n    ...ThemeSettingImage\n    __typename\n  }\n  ... on ThemeSettingImagePicker {\n    ...ThemeSettingImagePicker\n    __typename\n  }\n  ... on ThemeSettingRange {\n    ...ThemeSettingRange\n    __typename\n  }\n  ... on ThemeSettingCheckbox {\n    ...ThemeSettingCheckbox\n    __typename\n  }\n  __typename\n}\n\nfragment ThemeSettingCommon on ThemeSetting {\n  id\n  info\n  label\n  settingId\n  type\n  __typename\n}\n\nfragment ThemeSettingHeader on ThemeSettingHeader {\n  ...ThemeSettingCommon\n  content\n  __typename\n}\n\nfragment ThemeSettingCollection on ThemeSettingCollection {\n  ...ThemeSettingCommon\n  collectionValue: value\n  __typename\n}\n\nfragment ThemeSettingColor on ThemeSettingColor {\n  ...ThemeSettingCommon\n  colorDefault: default\n  colorValue: value\n  __typename\n}\n\nfragment ThemeSettingFont on ThemeSettingFont {\n  ...ThemeSettingCommon\n  options {\n    label\n    value\n    __typename\n  }\n  fontValue: value\n  __typename\n}\n\nfragment ThemeSettingImage on ThemeSettingImage {\n  ...ThemeSettingCommon\n  imageValue: value\n  __typename\n}\n\nfragment ThemeSettingImagePicker on ThemeSettingImagePicker {\n  ...ThemeSettingCommon\n  imagePickerValue: value\n  __typename\n}\n\nfragment ThemeSettingRange on ThemeSettingRange {\n  ...ThemeSettingCommon\n  rangeDefault: default\n  min\n  max\n  step\n  unit\n  rangeValue: value\n  __typename\n}\n\nfragment ThemeSettingCheckbox on ThemeSettingCheckbox {\n  ...ThemeSettingCommon\n  checkboxDefault: default\n  checkboxValue: value\n  __typename\n}\n\n\n', instance of Nuwave\\Lighthouse\\Schema\\Context, array(1), null, 'OnlineStoreTheme')"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\nuwave\\lighthouse\\src\\GraphQL.php",
          "line": 121,
          "call": "Nuwave\\Lighthouse\\GraphQL::executeOperation(instance of GraphQL\\Server\\OperationParams, instance of Nuwave\\Lighthouse\\Schema\\Context)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\nuwave\\lighthouse\\src\\Support\\Utils.php",
          "line": 99,
          "call": "Nuwave\\Lighthouse\\GraphQL::Nuwave\\Lighthouse\\{closure}(instance of GraphQL\\Server\\OperationParams)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\nuwave\\lighthouse\\src\\GraphQL.php",
          "line": 120,
          "call": "Nuwave\\Lighthouse\\Support\\Utils::applyEach(instance of Closure, instance of GraphQL\\Server\\OperationParams)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\nuwave\\lighthouse\\src\\Support\\Http\\Controllers\\GraphQLController.php",
          "line": 32,
          "call": "Nuwave\\Lighthouse\\GraphQL::executeOperationOrOperations(instance of GraphQL\\Server\\OperationParams, instance of Nuwave\\Lighthouse\\Schema\\Context)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\ControllerDispatcher.php",
          "line": 48,
          "call": "Nuwave\\Lighthouse\\Support\\Http\\Controllers\\GraphQLController::__invoke(instance of Illuminate\\Http\\Request, instance of Nuwave\\Lighthouse\\GraphQL, instance of Illuminate\\Events\\Dispatcher, instance of Laragraph\\Utils\\RequestParser, instance of Nuwave\\Lighthouse\\Execution\\SingleResponse, instance of Nuwave\\Lighthouse\\Execution\\ContextFactory)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Route.php",
          "line": 219,
          "call": "Illuminate\\Routing\\ControllerDispatcher::dispatch(instance of Illuminate\\Routing\\Route, instance of Nuwave\\Lighthouse\\Support\\Http\\Controllers\\GraphQLController, '__invoke')"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Route.php",
          "line": 176,
          "call": "Illuminate\\Routing\\Route::runController()"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php",
          "line": 681,
          "call": "Illuminate\\Routing\\Route::run()"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 130,
          "call": "Illuminate\\Routing\\Router::Illuminate\\Routing\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\nuwave\\lighthouse\\src\\Support\\Http\\Middleware\\AttemptAuthentication.php",
          "line": 34,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 171,
          "call": "Nuwave\\Lighthouse\\Support\\Http\\Middleware\\AttemptAuthentication::handle(instance of Illuminate\\Http\\Request, instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\nuwave\\lighthouse\\src\\Support\\Http\\Middleware\\AcceptJson.php",
          "line": 27,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 171,
          "call": "Nuwave\\Lighthouse\\Support\\Http\\Middleware\\AcceptJson::handle(instance of Illuminate\\Http\\Request, instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 105,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php",
          "line": 683,
          "call": "Illuminate\\Pipeline\\Pipeline::then(instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php",
          "line": 658,
          "call": "Illuminate\\Routing\\Router::runRouteWithinStack(instance of Illuminate\\Routing\\Route, instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php",
          "line": 624,
          "call": "Illuminate\\Routing\\Router::runRoute(instance of Illuminate\\Http\\Request, instance of Illuminate\\Routing\\Route)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php",
          "line": 613,
          "call": "Illuminate\\Routing\\Router::dispatchToRoute(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php",
          "line": 170,
          "call": "Illuminate\\Routing\\Router::dispatch(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 130,
          "call": "Illuminate\\Foundation\\Http\\Kernel::Illuminate\\Foundation\\Http\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\app\\Http\\Middleware\\ChangeAppUrlMiddleware.php",
          "line": 23,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 171,
          "call": "App\\Http\\Middleware\\ChangeAppUrlMiddleware::handle(instance of Illuminate\\Http\\Request, instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest.php",
          "line": 21,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 171,
          "call": "Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest::handle(instance of Illuminate\\Http\\Request, instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest.php",
          "line": 21,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 171,
          "call": "Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest::handle(instance of Illuminate\\Http\\Request, instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize.php",
          "line": 27,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 171,
          "call": "Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize::handle(instance of Illuminate\\Http\\Request, instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode.php",
          "line": 63,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 171,
          "call": "Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode::handle(instance of Illuminate\\Http\\Request, instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\fideloper\\proxy\\src\\TrustProxies.php",
          "line": 57,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 171,
          "call": "Fideloper\\Proxy\\TrustProxies::handle(instance of Illuminate\\Http\\Request, instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\dingo\\api\\src\\Http\\Middleware\\Request.php",
          "line": 111,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 171,
          "call": "Dingo\\Api\\Http\\Middleware\\Request::handle(instance of Illuminate\\Http\\Request, instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php",
          "line": 105,
          "call": "Illuminate\\Pipeline\\Pipeline::Illuminate\\Pipeline\\{closure}(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php",
          "line": 145,
          "call": "Illuminate\\Pipeline\\Pipeline::then(instance of Closure)"
        },
        {
          "file": "E:\\wwwroot\\object\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php",
          "line": 110,
          "call": "Illuminate\\Foundation\\Http\\Kernel::sendRequestThroughRouter(instance of Illuminate\\Http\\Request)"
        },
        {
          "file": "E:\\wwwroot\\object\\public\\index.php",
          "line": 57,
          "call": "Illuminate\\Foundation\\Http\\Kernel::handle(instance of Illuminate\\Http\\Request)"
        }
      ]
    }
  ],
  "data": {}
}

2. I printed the response object, and its value was string(0) “”.

Plaintext
object(Modules\ThemeSetting\Schema\Dto\Theme\SettingCategory)#11928 (3) {
  ["name":protected]=>
  string(12) "网站图标"
  ["settings":protected]=>
  array(1) {
    [0]=>
    object(Modules\ThemeSetting\Schema\Types\ImagePickerType)#11930 (5) {
      ["value":"Modules\ThemeSetting\Schema\Types\ImagePickerType":private]=>
      string(0) ""
      ["id":"Modules\ThemeSetting\Schema\Types\IdentifiedType":private]=>
      string(7) "favicon"
      ["label":"Modules\ThemeSetting\Schema\Types\BaseType":private]=>
      string(12) "网站图标"
      ["info":"Modules\ThemeSetting\Schema\Types\BaseType":private]=>
      string(142) "Favicon为网站的缩略标识，会展示在浏览器标签、收藏夹，建议尺寸为32x32 px,大小限制：≤8M，最大像素20MP。"
      ["type":"Modules\ThemeSetting\Schema\Types\BaseType":private]=>
      string(12) "image_picker"
    }
  }
  ["identified":"Modules\ThemeSetting\Schema\Dto\Theme\SettingCategory":private]=>
  array(1) {
    ["favicon"]=>
    object(Modules\ThemeSetting\Schema\Types\ImagePickerType)#11930 (5) {
      ["value":"Modules\ThemeSetting\Schema\Types\ImagePickerType":private]=>
      string(0) ""
      ["id":"Modules\ThemeSetting\Schema\Types\IdentifiedType":private]=>
      string(7) "favicon"
      ["label":"Modules\ThemeSetting\Schema\Types\BaseType":private]=>
      string(12) "网站图标"
      ["info":"Modules\ThemeSetting\Schema\Types\BaseType":private]=>
      string(142) "Favicon为网站的缩略标识，会展示在浏览器标签、收藏夹，建议尺寸为32x32 px,大小限制：≤8M，最大像素20MP。"
      ["type":"Modules\ThemeSetting\Schema\Types\BaseType":private]=>
      string(12) "image_picker"
    }
  }
}

3. In the GraphQL schema, the value is set to URL. It allows null. However, when the value is string(0) “”, it validates whether the value conforms to URL rules. When the value is null or http://www.xxx.com, the error no longer occurs.

JSON

  {
	"id": "96b1c8b9-5b18-4760-9e26-50ab009ac011/settings/favicon",
	"info": "Favicon为网站的缩略标识，会展示在浏览器标签、收藏夹，建议尺寸为32x32 px,大小限制：≤8M，最大像素20MP。",
	"label": "网站图标",
	"settingId": "favicon",
	"type": "IMAGE_PICKER",
	"__typename": "ThemeSettingImagePicker",
	"imagePickerValue": "http://www.xxx.com"
  }
JSON

  {
	"id": "96b1c8b9-5b18-4760-9e26-50ab009ac011/settings/share__default_image",
	"info": "当你在社交媒体上分享店铺或商品链接时，我们将使用该背景图。",
	"label": "图片",
	"settingId": "share__default_image",
	"type": "IMAGE_PICKER",
	"__typename": "ThemeSettingImagePicker",
	"imagePickerValue": null
  }

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