Structure

I have something like

(A) SharedLib which references Nop.Web

(B) Plugin uses SharedLib

And when I build them and run Nop.Web, duplicate assembly error is thrown and can’t procceed.

When I dig a bit deeper, I found that under (B)’s build output, there’s a Plugins folder and among all other output SharedLib‘s binary is in it, this is where the duplication is.

Solution

So I have to reference Nop.Web but I do not want its output in my plugin’s output.

In (A)SharedLib

Instead referencing Nop.Web this way:

<ProjectReference Include="..\..\Presentation\Nop.Web\Nop.Web.csproj" >

We use this:

<ItemGroup>
    <ProjectReference Include="..\..\Presentation\Nop.Web\Nop.Web.csproj" >
      <Private>false</Private>
      <CopyLocalSatelliteAssemblies>false</CopyLocalSatelliteAssemblies>
      <ReferenceOutputAssembly>true</ReferenceOutputAssembly>
    </ProjectReference>
  </ItemGroup>

In (B)

Reference SharedLib:

<ItemGroup>
    <ProjectReference Include="..\Nop.Plugin.SharedLib\Nop.Plugin.Rsc.SharedLib">
      <Private>false</Private>
      <CopyLocalSatelliteAssemblies>false</CopyLocalSatelliteAssemblies>
      <ReferenceOutputAssembly>true</ReferenceOutputAssembly>
    </ProjectReference>
    <ClearPluginAssemblies Include="$(MSBuildProjectDirectory)\..\..\Build\ClearPluginAssemblies.proj" />
  </ItemGroup>

And also prevent Nop.Web‘s output to be copied:

<ItemGroup>
    <ProjectReference Include="..\..\Presentation\Nop.Web\Nop.Web.csproj">
      <Private>false</Private>
      <CopyLocalSatelliteAssemblies>false</CopyLocalSatelliteAssemblies>
      <ReferenceOutputAssembly>true</ReferenceOutputAssembly>
    </ProjectReference>
  </ItemGroup>