TFS build failed with .target file not able to copy file its too long?

Question

C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\OfficeTools\Microsoft.VisualStudio.Tools.Office.targets (524): Unable to copy file "C:\Program Files\Reference Assemblies\Microsoft\VSTO40\v4.0.Framework\Microsoft.VisualStudio.Tools.Applications.Runtime.dll" to ".\bin\Release\app.publish\Application Files\SI.TemplateDesignerOffice2007_4_1_9080_0199\Microsoft.VisualStudio.Tools.Applications.Runtime.dll.deploy".

The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters.

Answer 1

Try changing your publish folder, remove it from your bin and put in somewhere higher in your directory structure, like besides your src folder or something.

Answer 2

That's the Microsoft limited.

There is a thread talking about this : MSBuild should handle paths longer than MAX_PATH

So, I can think of is that just try to shorten the path, you can refer to below articles to troubleshoot the issue:

• Publishing Builds to a Deep Drop Location
• Microsoft Removes 260-Character Path Length Limit in Windows 10 Redstone