NUnit Adapter 3.0.8.0 System.ArgumentException, Exception thrown executing tests in

I am using Visual Studio 2013(NUnit Adapter 3.0.8.0), Selenium web driver for automation testing.

When I Run All, tests executed successfully.

When I select one test and try to run it I am getting following error:

------ Run test started ------
NUnit Adapter 3.0.8.0 executing tests is started
Running selected tests in C:\Development\ProjectT.dll
Loading tests from C:\Development\RegressionTest\bin\ProjectT.dll
Exception System.ArgumentException, Exception thrown executing tests in C:\Development\RegressionTest\bin\ProjectT.dll
Invalid filter element: test
Parameter name: xmlNode
NUnit Adapter 3.0.8.0 executing tests is finished
========== Run test finished: 0 run (0:00:04.55) ==========

Any idea how can I fix it? I tried to create Play list and run it. The same error.