Fix serviceprovider reference issue.

src/Volo.Abp.AspNetCore/Volo/Abp/AspNetCore/EmbeddedFiles/EmbeddedResourceFileProvider.cs

@@ -12,6 +12,7 @@ namespace Volo.Abp.AspNetCore.EmbeddedFiles
     {
         private readonly Lazy<IEmbeddedFileManager> _embeddedResourceManager;
         private readonly Lazy<AspNetCoreEmbeddedFileOptions> _options;
+        private readonly IObjectAccessor<IServiceProvider> _serviceProviderAccessor;
 
         public EmbeddedResourceFileProvider(IServiceProvider serviceProvider)
             : this(new ObjectAccessor<IServiceProvider>(serviceProvider))
@@ -19,21 +20,28 @@ namespace Volo.Abp.AspNetCore.EmbeddedFiles
             
         }
 
-        public EmbeddedResourceFileProvider(IObjectAccessor<IServiceProvider> serviceProvider)
+        public EmbeddedResourceFileProvider(IObjectAccessor<IServiceProvider> serviceProviderAccessor)
         {
+            _serviceProviderAccessor = serviceProviderAccessor;
+
             _embeddedResourceManager = new Lazy<IEmbeddedFileManager>(
-                () => serviceProvider.Value.GetRequiredService<IEmbeddedFileManager>(),
+                () => serviceProviderAccessor.Value.GetRequiredService<IEmbeddedFileManager>(),
                 true
             );
 
             _options = new Lazy<AspNetCoreEmbeddedFileOptions>(
-                () => serviceProvider.Value.GetRequiredService<IOptions<AspNetCoreEmbeddedFileOptions>>().Value,
+                () => serviceProviderAccessor.Value.GetRequiredService<IOptions<AspNetCoreEmbeddedFileOptions>>().Value,
                 true
             );
         }
 
         public IFileInfo GetFileInfo(string subpath)
         {
+            if (!IsInitialized())
+            {
+                return new NotFoundFileInfo(subpath);
+            }
+
             var resource = _embeddedResourceManager.Value.FindFile(subpath);
 
             if (resource == null || IsIgnoredFile(resource))
@@ -46,6 +54,11 @@ namespace Volo.Abp.AspNetCore.EmbeddedFiles
 
         public IDirectoryContents GetDirectoryContents(string subpath)
         {
+            if (!IsInitialized())
+            {
+                return new NotFoundDirectoryContents();
+            }
+
             //TODO: Implement...?
 
             return new NotFoundDirectoryContents();
@@ -60,5 +73,10 @@ namespace Volo.Abp.AspNetCore.EmbeddedFiles
         {
             return resource.FileExtension != null && _options.Value.IgnoredFileExtensions.Contains(resource.FileExtension);
         }
+
+        private bool IsInitialized()
+        {
+            return _serviceProviderAccessor.Value != null;
+        }
     }
 }

src/Volo.Abp.AspNetCore/Volo/Abp/AspNetCore/EmbeddedFiles/EmbeddedResourceViewFileProvider.cs

@@ -4,10 +4,11 @@ using Volo.Abp.EmbeddedFiles;
 
 namespace Volo.Abp.AspNetCore.EmbeddedFiles
 {
+    //TODO: Remove to Volo.Abp.AspNetCore.Mvc project!
     public class EmbeddedResourceViewFileProvider : EmbeddedResourceFileProvider
     {
-        public EmbeddedResourceViewFileProvider(IObjectAccessor<IServiceProvider> serviceProvider) 
-            : base(serviceProvider)
+        public EmbeddedResourceViewFileProvider(IObjectAccessor<IServiceProvider> serviceProviderAccessor) 
+            : base(serviceProviderAccessor)
         {
         }
 

src/Volo.Abp/Volo/Abp/AbpApplicationBase.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using JetBrains.Annotations;
 using Microsoft.Extensions.DependencyInjection;
+using Volo.Abp.DependencyInjection;
 using Volo.Abp.Internal;
 using Volo.Abp.Modularity;
 
@@ -12,7 +13,7 @@ namespace Volo.Abp
         [NotNull]
         public Type StartupModuleType { get; }
 
-        public IServiceProvider ServiceProvider { get; protected set; }
+        public IServiceProvider ServiceProvider { get; private set; }
 
         public IServiceCollection Services { get; }
 
@@ -29,6 +30,8 @@ namespace Volo.Abp
             StartupModuleType = startupModuleType;
             Services = services;
 
+            services.TryAddObjectAccessor<IServiceProvider>();
+
             var options = new AbpApplicationCreationOptions(services);
             optionsAction?.Invoke(options);
 
@@ -50,16 +53,11 @@ namespace Volo.Abp
         {
 
         }
-
-        private IReadOnlyList<IAbpModuleDescriptor> LoadModules(IServiceCollection services, AbpApplicationCreationOptions options)
+        
+        protected virtual void SetServiceProvider(IServiceProvider serviceProvider)
         {
-            return services
-                .GetSingletonInstance<IModuleLoader>()
-                .LoadModules(
-                    services,
-                    StartupModuleType,
-                    options.PlugInSources
-                );
+            ServiceProvider = serviceProvider;
+            ServiceProvider.GetRequiredService<ObjectAccessor<IServiceProvider>>().Value = ServiceProvider;
         }
 
         protected virtual void InitializeModules()
@@ -71,5 +69,16 @@ namespace Volo.Abp
                     .InitializeModules(new ApplicationInitializationContext(scope.ServiceProvider));
             }
         }
+
+        private IReadOnlyList<IAbpModuleDescriptor> LoadModules(IServiceCollection services, AbpApplicationCreationOptions options)
+        {
+            return services
+                .GetSingletonInstance<IModuleLoader>()
+                .LoadModules(
+                    services,
+                    StartupModuleType,
+                    options.PlugInSources
+                );
+        }
     }
 }

src/Volo.Abp/Volo/Abp/AbpApplicationWithExternalServiceProvider.cs

@@ -22,7 +22,7 @@ namespace Volo.Abp
         {
             Check.NotNull(serviceProvider, nameof(serviceProvider));
 
-            ServiceProvider = serviceProvider;
+            SetServiceProvider(serviceProvider);
 
             InitializeModules();
         }

src/Volo.Abp/Volo/Abp/AbpApplicationWithInternalServiceProvider.cs

@@ -34,8 +34,8 @@ namespace Volo.Abp
         public void Initialize()
         {
             ServiceScope = Services.BuildServiceProviderFromFactory().CreateScope();
-            ServiceProvider = ServiceScope.ServiceProvider;
-
+            SetServiceProvider(ServiceScope.ServiceProvider);
+            
             InitializeModules();
         }
 

src/Volo.Abp/Volo/Abp/AbpKernelModule.cs

@@ -1,6 +1,4 @@
-using System;
-using Microsoft.Extensions.DependencyInjection;
-using Volo.Abp.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection;
 using Volo.Abp.Modularity;
 using Volo.Abp.ObjectMapping;
 using Volo.Abp.Reflection;
@@ -35,9 +33,7 @@ namespace Volo.Abp
             services.AddLogging();
 
             services.AddAssemblyOf<AbpKernelModule>();
-
-            services.TryAddObjectAccessor<IServiceProvider>();
-
+            
             services.Configure<ModuleLifecycleOptions>(options =>
             {
                 options.Contributers.Add<OnPreApplicationInitializationModuleLifecycleContributer>();
@@ -46,10 +42,5 @@ namespace Volo.Abp
                 options.Contributers.Add<OnApplicationShutdownModuleLifecycleContributer>();
             });
         }
-
-        public override void OnApplicationInitialization(ApplicationInitializationContext context)
-        {
-            context.ServiceProvider.GetRequiredService<ObjectAccessor<IServiceProvider>>().Value = context.ServiceProvider;
-        }
     }
 }