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I finally solved this big trouble. 1.1 Uninstall VSTU 1.2 uninstall Visual Studio 2013 1.3 restart PC 1.4 install Visual Studio 2013 2. from this...
Unity 5.2.0p1 VS2013 - VSTU 2.1 I did every steps and still debug doesn't work! It' s really bad situation!!! Everything was ok in older Unity...