MSB3273: Unknown processor architecture. The implementation file "{0}" for "{1}" had an ImageFileMachine value of "0x{2}". ...

MSB3273: Unknown processor architecture. The implementation file "{0}" for "{1}" had an ImageFileMachine value of "0x{2}". If you wish to use this implementation file make sure the "ResolveAssemblyWarnOrErrorOnTargetArchitectureMismatch" property in your project is set to "Warning" or "None".