How to get import custom tasks more than once without warning message?

I'm using some custom tasks from MSBuild Extensio开发者_Python百科n Pack (MEP). My projects are splitted among many files. In those files I import the MEP tasks using (twice or three times in two/three files). I receive the warning message when doing this like:

... warning MSB4011: "C:\Program Files\MSBuild\ExtensionPack\MSBuild.ExtensionPack.tasks" cannot be imported again. It was already imported at "D:...\Tasker.proj (5,3)". This is most likely a build authoring error. This subsequent import will be ignored.

Does anyone know how to get rid of this warning message? Please help!

The work-around of this question would be: Calling the import with condition to check the existence of a unique property defined in the considering project file. Hope this helps!

That warning has happened to me when I have built my application from VS IDE and by MSBuild tool in parallel. I guess the same might happen when you work with more than one VS window on the same project

Delete the automatically generated file yourproject.nuget.props and the warning will go away.