Warning 12 The element ‘ItemGroup’ in namespace
‘http://schemas.microsoft.com/developer/msbuild/2003’ has invalid
child element ‘TCS_Compile’ in namespace
‘http://schemas.microsoft.com/developer/msbuild/2003’. List of
possible elements expected: ‘Item,Reference,COMReference,
COMFileReference,Xdcmake,Bscmake,ClCompile,ClInclude,Midl,
ResourceCompile,PreLinkEvent,CustomBuildStep,Manifest,
ProjectConfiguration,NativeReference,ProjectReference,Compile,
EmbeddedResource,Content,Page,Resource,ApplicationDefinition,
None,BaseApplicationManifest,Folder,Import,Service,WebReferences,
WebReferenceUrl,FileAssociation,BootstrapperFile,PublishFile,
CodeAnalysisDependentAssemblyPaths,CodeAnalysisDictionary,
CodeAnalysisImport,Link,ResourceCompile,PreBuildEvent,
PostBuildEvent’ in namespace
‘http://schemas.microsoft.com/developer/msbuild/2003’.

任何想法如何解决这些问题？