diff --git a/Infrastructure/Infrastructure.csproj b/Infrastructure/Infrastructure.csproj
index 050cdebb..81a5beb4 100644
--- a/Infrastructure/Infrastructure.csproj
+++ b/Infrastructure/Infrastructure.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp5.0</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
diff --git a/OpenAuth.App/OpenAuth.App.csproj b/OpenAuth.App/OpenAuth.App.csproj
index 8b7a37d4..cf344808 100644
--- a/OpenAuth.App/OpenAuth.App.csproj
+++ b/OpenAuth.App/OpenAuth.App.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp5.0</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
diff --git a/OpenAuth.Identity/OpenAuth.IdentityServer.csproj b/OpenAuth.Identity/OpenAuth.IdentityServer.csproj
index 8e97fdb1..bbecc0e1 100644
--- a/OpenAuth.Identity/OpenAuth.IdentityServer.csproj
+++ b/OpenAuth.Identity/OpenAuth.IdentityServer.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp5.0</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
   
   <ItemGroup>
diff --git a/OpenAuth.Mvc/OpenAuth.Mvc.csproj b/OpenAuth.Mvc/OpenAuth.Mvc.csproj
index ea1f7e0f..a5255877 100644
--- a/OpenAuth.Mvc/OpenAuth.Mvc.csproj
+++ b/OpenAuth.Mvc/OpenAuth.Mvc.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp5.0</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <UseRazorBuildServer>false</UseRazorBuildServer>
   </PropertyGroup>
 
diff --git a/OpenAuth.Repository/OpenAuth.Repository.csproj b/OpenAuth.Repository/OpenAuth.Repository.csproj
index 6a397f5c..e1710054 100644
--- a/OpenAuth.Repository/OpenAuth.Repository.csproj
+++ b/OpenAuth.Repository/OpenAuth.Repository.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp5.0</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
diff --git a/OpenAuth.WebApi/Model/StartupLogger.cs b/OpenAuth.WebApi/Model/StartupLogger.cs
deleted file mode 100644
index 736ab5f6..00000000
--- a/OpenAuth.WebApi/Model/StartupLogger.cs
+++ /dev/null
@@ -1,24 +0,0 @@
-
-
-using Microsoft.Extensions.Logging;
-
-namespace OpenAuth.WebApi.Model
-{
-    /// <summary>
-    /// 从3.0开始Startup ConfigureServices中不能使用ILogger，需要扩展
-    /// </summary>
-    public class StartupLogger
-    {
-        private readonly ILogger<StartupLogger> _logger;
-
-        public StartupLogger(ILogger<StartupLogger> logger)
-        {
-            _logger = logger;
-        }
-
-        public void LogInformation(string message)
-        {
-            _logger.LogInformation(message);
-        }
-    }
-}
\ No newline at end of file
diff --git a/OpenAuth.WebApi/OpenAuth.WebApi.csproj b/OpenAuth.WebApi/OpenAuth.WebApi.csproj
index f330915a..cb47d878 100644
--- a/OpenAuth.WebApi/OpenAuth.WebApi.csproj
+++ b/OpenAuth.WebApi/OpenAuth.WebApi.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp5.0</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">