MSBuild UsingTask Resolve References

Question

I feel like I\'ve fixed this before, but I can\'t remember how.

I have a tasks file that looks like this (CustomTasks.tasks):

Answer 1

This is actually easy to fix. Put your custom build tasks and dependencies in a different folder. Then dependencies are loaded correctly.

For example like so:

<UsingTask AssemblyFile="..\BuildTools\CustomTasks.dll" TaskName="MyCustomTask"/>

Answer 2

Got tired and frustrated and took a direct approach...I don't think this is the same way I solved the problem previously...but maybe this will help someone else. Other, more elegant solutions are more than welcome.

  <Target Name="BeforeBeforeBuild" BeforeTargets="BeforeBuild">
    <HandleAssemblyResolve SearchPath="$(ProjectDir)\..\MSBuild\" />
  </Target>
  <UsingTask TaskName="HandleAssemblyResolve" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
    <ParameterGroup>
      <SearchPath ParameterType="System.String" Required="true" />
    </ParameterGroup>
    <Task>
      <Using Namespace="System" />
      <Using Namespace="System.IO" />
      <Using Namespace="System.Reflection" />
      <Code Type="Fragment" Language="cs">
        <![CDATA[
AppDomain.CurrentDomain.AssemblyResolve += (sender, e) => 
{ 
  var assemblySearchPath = Path.Combine(SearchPath, e.Name.Split(',')[0]);
  if (File.Exists(assemblySearchPath)) return Assembly.LoadFrom(assemblySearchPath);

  return null;
};
]]>
      </Code>
    </Task>
  </UsingTask>