c# – 将.net核心与旧版.net框架dll一起使用

我创建了一个新的.net核心库,并试图引用一个遗留的.net框架DLL.当我试图调用DLL时,vs2017抱怨我没有Stream对象正在寻找.

它建议我引用mscorlib.dll或installa Nuget包.

快速帮助未能引用mscorlib.dll.如果我手动引用它,我会收到以下错误：

The type ‘TargetFrameworkAttribute’ exists in both ‘mscorlib,
Version=4.0.0.0,Culture=neutral,PublicKeyToken=b77a5c561934e089’ and
‘System.Runtime,Version=4.1.0.0,
PublicKeyToken=b03f5f7f11d50a3a’ C:Users…AppDataLocalTemp.NETCoreApp,Version=v1.1.AssemblyAttributes.cs

NuGet包是Microsoft.NETFx2.0.快速帮助无法安装它.如果我从命令行运行它：

> PM> install-package microsoft.netfx20   GET
> https://api.nuget.org/v3/registration2-gz/microsoft.netfx20/index.json
> OK
> https://api.nuget.org/v3/registration2-gz/microsoft.netfx20/index.json
> 46ms Restoring packages for ... Install-Package : Package
> Microsoft.NetFX20 1.0.3 is not compatible with netcoreapp1.1
> (.NETCoreApp,Version=v1.1). Package Microsoft.NetFX20 1.0.3 supports:
> net20 (.NETFramework,Version=v2.0)At line:1 char:1
> + install-package microsoft.netfx20
> + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>     + CategoryInfo          : NotSpecified: (:) [Install-Package],Exception
>     + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand
> Install-Package : One or more packages are incompatible with
> .NETCoreApp,Version=v1.1.At line:1 char:1
> + install-package microsoft.netfx20
> + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>     + CategoryInfo          : NotSpecified: (:) [Install-Package],NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand
> Install-Package : Package restore failed. Rolling back package changes
> for .At line:1 char:1
> + install-package microsoft.netfx20
> + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>     + CategoryInfo          : NotSpecified: (:) [Install-Package],NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand
> Time Elapsed: 00:00:00.8035644