Trying to build installer

Dec 8, 2014 at 8:53 AM
I keep getting this error

C:\ptvs_2.1\Python\Setup>powershell -ExecutionPolicy RemoteSigned .\BuildRelease
.ps1 C:\PTVS_Out -skiptests
Build Root: C:\ptvs_2.1
Unable to determine the source control server.
C:\ptvs_2.1\Python\Product\AssemblyVersion.cs has pending changes. Using backup

instead of tf undo.

Output Dir: C:\PTVS_Out

Product version: 2.0.2.$(VS version)
File version: 2.1.21208.00

Building for VS 2013, VS 2012, VS 2010

Cleaning previous release in C:\PTVS_Out
Failed to clean release. Retrying in five seconds. (Press Ctrl+C to abort)
Failed to clean release. Retrying in five seconds. (Press Ctrl+C to abort)

C:\ptvs_2.1\Python\Setup>

Please explain what I'm doing wrong.