In Laravel 6, Lighthouse 5, nwidart/laravel-modules 7, an error is reported: illuminate\contracts\container\bindingResolutionException : target[Interface]Is not instantiable while building[Resolver]. To delay loading the provider, the providers method is not implemented
1. In Lighthouse 5, an error is reported: illuminate\contracts\container\bindingResolutionException : target[Interface]Is not instantiable while building[Resolver]… as shown in Figure 1
![在 Lighthouse 5 中，报错：Illuminate\Contracts\Container\BindingResolutionException : Target [Interface] is not instantiable while building [Resolver].](https://www.shuijingwanwq.com/wp-content/uploads/2022/06/1-17.png)
Figure 1
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 , comment out: TemplateSettingsData(BaseName: String!):[ThemeSection]@field(resolver: “modules\\themestoreGraphQL\\resolver\\onlinestoreetheme\\TemplateSettingsDataResolver”). Then no errors will be reported.
# "获取主题页面的配置"
# templateSettingsData(basename: String!): [ThemeSection] @field(resolver: "Modules\\ThemeStoreGraphQl\\Resolver\\OnlineStoreTheme\\TemplateSettingsDataResolver")
3. After uncommenting, check ThemeStoreGraphQL/Resolver/OnlineStoreEtheme/TemplateSettingsDateResolver.php . TemplateSchemaLoaderInterface is passed as a parameter to the constructor.
private TemplateSchemaLoaderInterface $templateSchemaLoader;
public function __construct(TemplateSchemaLoaderInterface $templateSchemaLoader)
{
$this->templateSchemaLoader = $templateSchemaLoader;
}
4. Check the service provider class of this module, and it is determined that there are corresponding instances registered. But does not execute register() . Because no graphql is 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 the path is E:\wwwroot\object\modules/themestoreGraphQL. as shown in Figure 2
Figure 2
6. Check /modules/themestoreGraphQL/Composer.json, the path ThemeStoreGraphQL does not match the actual directory name ThemeStoreGraphQL. Adjusted to match the actual directory name. as shown in Figure 3
Figure 3
{
"extra": {
"laravel": {
"providers": [
"Modules\\ThemeStoreGraphQL\\Providers\\GraphQlResolverServiceProvider"
],
"aliases": {
}
}
},
"autoload": {
"psr-4": {
"Modules\\ThemeStoreGraphQL\\": ""
}
}
}
7. Rename the directory name: ThemeStoreGraphQL, and then batch replace ThemeStoreGraphQL to theMeStoreGraphQL. Failed to rename in phpstorm, prompt: java.io.IOException: cannot beE:\WWWroot\Object\Modules\ThemeStoreGraphQLRenamed ThemeStoreGraphQL. as shown in Figure 4
Figure 4
8. Rename in the operating system directory. as shown in Figure 5
Figure 5
9. After batch replacement, execute composer install. Error still reported: Illuminate\Contracts\Container\BindingResolutionException : target[Modules\ThemeStoreGraphQL\ThemeSetting\Schema\TemplateSchemaLoaderInterface]Is not instantiable while building[Modules\ThemeStoreGraphQL\Resolver\OnlineStoreTheme\TemplateSettingsDataResolver].
10. View /bootstrap/cache/services.php, GraphQlResolverServiceProvider in the array keyProvidersexist in the array keyeagerdoes not exist in.
<?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, delete the Implements DeferrableProvider After, look at /bootstrap/cache/services.php’s GraphQlResolverServiceProvider in the array keyseagerexists, and the program runs no longer reported errors.
use Illuminate\Contracts\Support\DeferrableProvider;
class GraphQlResolverServiceProvider extends ServiceProvider implements DeferrableProvider
12. To delay loading the provider, you need to implement a Provides method of \illuminate\contracts\support\deferRableProvider interface. This Provides method returns the service container binding 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. View the GraphQlResolverServiceProvider of /bootstrap/cache/services.php in the array keyeagerdoes not exist, and no errors are reported at runtime. as shown in Figure 6
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.
