Why does the xap file of the vsts compilation Silverlight project fail to enter the clientbin folder of the web project?

To solve this problem, you can directly open the web project file XXX. csproj in a text editor, find the node silverlightapplicationlist, modify the value, and save it.

 

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Not including the xap file from the build, when it is a team build will indeed remove the error, but it is not a solution to the problem!
The question is: Why is the xap file not copied to the clientbin folder when running under teambuild.
The magic seems to happen in the webapplication project, because that one has a reference to the Silverlight application.
In my caseI had renamed the Silverlight project and the folder where it lived in .

So the solution is as follows:
Open vs, right-click the WEB Project and selectUnload Project , Next right-click the WEB Project again and selectEdit Xxx . Csproj .
Locate<Silverlightapplicationlist> Tag and edit the path and project name so they are correct again.
Save The file and Check-in The file into TFs.

Restart your build.