VSP2340 Environment variable issues suddenly when profiling an app

问题

Can anybody explain why i'm suddenly getting this when trying to do any kind of performance profiling (the same way i always have) from within VS2012.

VSP2340: Environment variables were not properly set during profiling run and managed symbols may not resolve.  Please use vsperfclrenv before profiling.

I've googled and tried a few things, but i'm unable to find out how to get this working from within VS2012 again.

I found somebody with the same unanswered issue a couple of weeks back here: VS2013: "VSP2340: Environment variables were not properly set" even when running from IDE

Thanks in advance.

回答1:

I've had the same issue on Visual Studio 2012. Follow the steps below:

• Start - All Programs - Microsoft Visual Studio 2012 - Visual Studio Tools
• Right click "Open VS2012 x64 Native Tools Command Prompt" and select run as administrator
• The command prompt opens. Run vsperfclrenv /globalsampleon
• Reboot machine

来源：https://stackoverflow.com/questions/26440318/vsp2340-environment-variable-issues-suddenly-when-profiling-an-app