dimonovdd / AndroidWildcardsSample

This sample demonstrates two problems related to the csproj file on Android. Problem link

First (ProjectReference with Wildcard)

<ProjectReference Include="..\Plugins\*\*.csproj" />

This line will be expanded into what you see below when you open the project in VS4Mac. This works correctly in iOS or .Net Standart projects.

<ProjectReference Include="..\Plugins\TestPlugin2\TestPlugin2.csproj">
    <Targets></Targets>
    <OutputItemType></OutputItemType>
    <ReferenceSourceTarget>ProjectReference</ReferenceSourceTarget>
</ProjectReference>
<ProjectReference Include="..\Plugins\TestPlugin1\TestPlugin1.csproj">
    <Targets></Targets>
    <OutputItemType></OutputItemType>
    <ReferenceSourceTarget>ProjectReference</ReferenceSourceTarget>
</ProjectReference>

Second (Compile with Wildcard)

<ItemGroup> 
    <Compile Include="**\*.cs" Exclude="obj\**" /> 
</ItemGroup> 

A project will not be built the first time with this ItemGroup (The next ItemGroup is an ugly hack to solve). Resources\Resource.designer.cs will be generated but it will not be included in the project at the first compilation. this problem It doesn't depend on a IDE it doesn't work correctly with MSBuild on Terminal

<ItemGroup>
    <Compile Include="**\*.cs" Exclude="$(AndroidResgenFile);obj\**" />
    <Compile Include="$(AndroidResgenFile)" />
</ItemGroup> 

This will work correctly if you add this line to csproj (@mattleibow thank you for this information):

<AndroidUseIntermediateDesignerFile>true</AndroidUseIntermediateDesignerFile>