1. In Lighthouse 5, the following error occurs: Illuminate\Contracts\Container\BindingResolutionException : Target [Interface] is not instantiable while building [Resolver]. See Figure 1.
![In Lighthouse 5, the following error occurs: Illuminate\Contracts\Container\BindingResolutionException : Target [Interface] is not instantiable while building [Resolver].](https://media.shuijingwanwq.com/2022/06/1-17.png)
PS E:\wwwroot\object> php artisan lighthouse:ide-helper
Wrote schema directive definitions to E:\wwwroot\object/schema-directives.graphql.
Illuminate\Contracts\Container\BindingResolutionException : Target [Modules\ThemeStoreGraphQl\ThemeSetting\Schema\TemplateSchemaLoaderInterface] is not instantiable while building [Modules\ThemeStoreGraphQl\Resolver\OnlineStoreTheme\TemplateSettingsDataResolver].
at E:\wwwroot\object\vendor\laravel\framework\src\Illuminate\Container\Container.php:978
974| } else {
975| $message = "Target [$concrete] is not instantiable.";
976| }
977|
> 978| throw new BindingResolutionException($message);
979| }
980|
981| /**
982| * Throw an exception for an unresolvable primitive.
Exception trace:
1 Illuminate\Container\Container::notInstantiable("Modules\ThemeStoreGraphQl\ThemeSetting\Schema\TemplateSchemaLoaderInterface")
E:\wwwroot\object\vendor\laravel\framework\src\Illuminate\Container\Container.php:812
2 Illuminate\Container\Container::build("Modules\ThemeStoreGraphQl\ThemeSetting\Schema\TemplateSchemaLoaderInterface")
E:\wwwroot\object\vendor\laravel\framework\src\Illuminate\Container\Container.php:681
Please use the argument -v to see more details.
2. Edit ThemeStoreGraphQl/Resources/graphql/theme_setting.graphql and comment out: templateSettingsData(basename: String!): [ThemeSection] @field(resolver: “Modules\\ThemeStoreGraphQl\\Resolver\\OnlineStoreTheme\\TemplateSettingsDataResolver”). The error no longer occurs.
# "获取主题页面的配置"
# templateSettingsData(basename: String!): [ThemeSection] @field(resolver: "Modules\\ThemeStoreGraphQl\\Resolver\\OnlineStoreTheme\\TemplateSettingsDataResolver")
3. After uncommenting it, check ThemeStoreGraphQl/Resolver/OnlineStoreTheme/TemplateSettingsDataResolver.php. TemplateSchemaLoaderInterface is passed in as a constructor parameter.
private TemplateSchemaLoaderInterface $templateSchemaLoader;
public function __construct(TemplateSchemaLoaderInterface $templateSchemaLoader)
{
$this->templateSchemaLoader = $templateSchemaLoader;
}
4. Check the service provider class for this module and confirm that the corresponding instance is registered. However, register() is not executed, because graphql is not output.
public function register()
{
echo 'graphql';
exit;
$this->app->singleton(TemplateSchemaLoaderInterface::class, function($app) {
if ($this->app['config']['theme_store.view_storage'] == 'database') {
return new DbTemplateSchemaLoader($app->make(ViewStorageInterface::class), $app->make(TemplateBuilder::class));
} else {
return new FileTemplateSchemaLoader($app->make('igaster.themes'), $app->make(TemplateBuilder::class));
}
});
$this->app->singleton(TemplateSettingsDataResolver::class, function($app){
return new TemplateSettingsDataResolver($app->make(TemplateSchemaLoaderInterface::class));
});
}
5. Check the module list: its Name is ThemeStoreGraphQL, and its Path is E:\wwwroot\object\Modules/ThemeStoreGraphQl. See Figure 2.
6. Check /Modules/ThemeStoreGraphQl/composer.json: the path ThemeStoreGraphQL does not match the actual directory name ThemeStoreGraphQl. Adjust it to match the actual directory name. See Figure 3.
{
"extra": {
"laravel": {
"providers": [
"Modules\\ThemeStoreGraphQL\\Providers\\GraphQlResolverServiceProvider"
],
"aliases": {
}
}
},
"autoload": {
"psr-4": {
"Modules\\ThemeStoreGraphQL\\": ""
}
}
}
7. Rename the directory to ThemeStoreGraphQL, then batch replace ThemeStoreGraphQl with ThemeStoreGraphQL. Renaming fails in PhpStorm with the prompt: java.io.IOException: 无法将 ‘E:\wwwroot\object\Modules\ThemeStoreGraphQl’重命名为 ThemeStoreGraphQL. See Figure 4.
8. Rename it in the operating system directory. See Figure 5.
9. After the batch replacement, run composer install. The error still occurs: Illuminate\Contracts\Container\BindingResolutionException : Target [Modules\ThemeStoreGraphQL\ThemeSetting\Schema\TemplateSchemaLoaderInterface] is not instantiable while building [Modules\ThemeStoreGraphQL\Resolver\OnlineStoreTheme\TemplateSettingsDataResolver].
10. Check /bootstrap/cache/services.php: GraphQlResolverServiceProvider exists in the array key ‘providers’, but not in the array key ‘eager’.
<?php return array (
'providers' =>
array (
90 => 'Modules\\ThemeStoreDB\\Providers\\ThemeStoreDBServiceProvider',
91 => 'Modules\\ThemeLocalization\\Providers\\ThemeLocalizationServiceProvider',
92 => 'Modules\\ThemeAsset\\Providers\\ThemeAssetServiceProvider',
93 => 'Modules\\ThemeSetting\\Providers\\ThemeSettingServiceProvider',
94 => 'Modules\\Theme\\Providers\\ThemeServiceProvider',
95 => 'Modules\\ThemeStoreGraphQL\\Providers\\GraphQlResolverServiceProvider',
),
'eager' =>
array (
74 => 'Modules\\ThemeStoreDB\\Providers\\ThemeStoreDBServiceProvider',
75 => 'Modules\\ThemeLocalization\\Providers\\ThemeLocalizationServiceProvider',
76 => 'Modules\\ThemeAsset\\Providers\\ThemeAssetServiceProvider',
77 => 'Modules\\ThemeSetting\\Providers\\ThemeSettingServiceProvider',
78 => 'Modules\\Theme\\Providers\\ThemeServiceProvider',
),
);11. Edit /Modules/ThemeStoreGraphQL/Providers/GraphQlResolverServiceProvider.php and remove implements DeferrableProvider. After checking /bootstrap/cache/services.php, GraphQlResolverServiceProvider now exists in the array key ‘eager’, and the program runs without errors.
use Illuminate\Contracts\Support\DeferrableProvider;
class GraphQlResolverServiceProvider extends ServiceProvider implements DeferrableProvider
12. To defer loading a provider, you need to implement the \Illuminate\Contracts\Support\DeferrableProvider interface and provide a provides method. This provides method returns the service container bindings registered by the provider.
use Illuminate\Contracts\Support\DeferrableProvider;
class GraphQlResolverServiceProvider extends ServiceProvider implements DeferrableProvider
{
/**
* 获取由提供者提供的服务。
*
* @return array
*/
public function provides()
{
return [TemplateSchemaLoaderInterface::class, TemplateSettingsDataResolver::class, SettingPersisterInterface::class];
}
}
13. Check /bootstrap/cache/services.php: GraphQlResolverServiceProvider does not exist in the array key ‘eager’, and no error occurs at runtime. See Figure 6.
PS E:\wwwroot\object> php artisan lighthouse:ide-helper
Wrote schema directive definitions to E:\wwwroot\object/schema-directives.graphql.
Wrote definitions for programmatically registered types to E:\wwwroot\object/programmatic-types.graphql.
Wrote PHP definitions to E:\wwwroot\object/_lighthouse_ide_helper.php.
It is recommended to add them to your .gitignore file.