如何解决netstandard 代码生成器 Microsoft.Data.SqlClient 抛出 FileNotFound System.Security.Principal.Windows,Version=4.1.1.0
我的 netstandard 2.0 代码生成器被核心 5.0 控制台应用程序引用。
csproj 看起来像这样
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>9.0</LangVersion>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Func" Version="0.2.2" />
<PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.2">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.8.0" PrivateAssets="all"/>
</ItemGroup>
<ItemGroup>
<!-- Generator dependencies -->
<PackageReference Include="Microsoft.Data.SqlClient" Version="2.1.1" GeneratePathProperty="true" PrivateAssets="all" />
</ItemGroup>
<PropertyGroup>
<GetTargetPathDependsOn>$(GetTargetPathDependsOn);GetDependencyTargetPaths</GetTargetPathDependsOn>
</PropertyGroup>
<Target Name="GetDependencyTargetPaths">
<ItemGroup>
<!--<TargetPathWithTargetPlatformMoniker Include="$(PKGSystem_Security_Principal_Windows)\runtimes\win\lib\netstandard1.3\System.Security.Principal.Windows.dll" IncludeRuntimeDependency="false" />-->
<TargetPathWithTargetPlatformMoniker Include="$(PKGMicrosoft_Data_SqlClient)\runtimes\win\lib\netstandard2.0\Microsoft.Data.SqlClient.dll" IncludeRuntimeDependency="false" />
</ItemGroup>
</Target>
</Project>
并引用 Microsoft.Data.SqlClient。
尝试像这样创建新的 SqlConnection
时
_dbConnection = new SqlConnection();
_dbConnection.ConnectionString = @"validconnectionstring";
_dbConnection.Open();
打开连接时抛出异常并显示消息:
Could not load file or assembly 'System.Security.Principal.Windows,Version=4.1.1.0,Culture=neutral,PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
Source:
Microsoft.Data.SqlClient
Stacktrace:
at Microsoft.Data.ProviderBase.DbConnectionPoolIdentity.GetCurrentNative()
at Microsoft.Data.ProviderBase.DbConnectionPoolGroup.GetConnectionPool(DbConnectionFactory connectionFactory)
at Microsoft.Data.ProviderBase.DbConnectionFactory.GetConnectionPool(DbConnection owningObject,DbConnectionPoolGroup connectionPoolGroup)
at Microsoft.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection,TaskCompletionSource1 retry,DbConnectionOptions userOptions,DbConnectionInternal oldConnection,DbConnectionInternal& connection) at Microsoft.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection,DbConnectionFactory connectionFactory,DbConnectionOptions userOptions)
at Microsoft.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry,SqlConnectionOverrides overrides)
at Microsoft.Data.SqlClient.SqlConnection.Open(SqlConnectionOverrides overrides)
at CSharp.Data.Sql.Schema.Provider.SqlServer.DbConnectionAsync..ctor() in C:\Dev\CSharpSQLProvider\SQLProvider\CSharp.Data.Sql\Schema\Provider\SqlServer\DbConnectionAsync.cs:line 18
at CSharp.Data.Sql.Generator.DataContextGenerator.Execute(GeneratorExecutionContext context) in C:\Dev\CSharpSQLProvider\SQLProvider\CSharp.Data.Sql\Generator\DataContextGenerator.cs:line 57
内部异常为空。
明确地说,我能够在设置连接字符串时创建一个 SqlConnection 实例,这个错误被抛出。我还尝试了 System.Data.SqlClient,但是我无法创建 SqlConnection 实例,但只是使用不同的程序集名称引发了相同的异常。
我还尝试将依赖项添加到 csproj 中,方法与示例中的 Microsoft.Data.SqlClient 相同,但无济于事,还尝试将所需的程序集加载到应用程序域中,并尝试添加程序集进入上下文编译。
var assembly = Assembly.LoadFrom(@"C:\Users\{user}\.nuget\packages\system.security.principal.windows\4.4.1\runtimes\win\lib\netcoreapp2.0\System.Security.Principal.Windows.dll");
var refe = MetadataReference.CreateFromFile(assembly.Location);
var foo = context.Compilation.ExternalReferences.Add(refe);
var d = context.Compilation.AddReferences(new[] { refe });
我怀疑我做错了什么,任何帮助将不胜感激。谢谢。
我还应该提到,缺少的程序集是执行方法中 AppDomain.CurrentDomain.GetAssemblies() 中返回的程序集的一部分
解决方法
您可以将所需的程序集映射到 app.config 中所需的版本,如下所示。
<dependentAssembly>
<assemblyIdentity name="System.Security.Principal.Windows" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="4.1.1.0" />
</dependentAssembly
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