Wednesday, February 22, 2012

TFS 2010 - Microsoft.TeamTest.targets(14,5): Object reference not set to an instance of an object

While trying to build unit test projects, you might have seen this error intermittently
C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v10.0\TeamTest\Microsoft.TeamTest.targets(14,5): error : Object reference not set to an instance of an object.

To fix this issue, you should look at the warnings which you get while building this project. Even though they are not errors, these warnings could be the cause of intermittent failure. So try to fix the warnings and this should resolve the issue.

If this does not work, another fix is described at http://social.msdn.microsoft.com/Forums/en-US/tfsbuild/thread/bb0a1752-f6ce-4001-8b45-5aa72f1909e3

These steps need to followed:
  • Open the build definition
  • Go to Process tab
  • Select Logging Verbosity as Detailed

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