Performance Session file does not exist or is invalid

Question

I have a web application that I'm trying to profile.

Here are my steps:

1) Debug => Performance Profiler

2) Performance Wizard is checked.

3) Click start

3) CPU sampling (recommended) checked

4) Next

5) One or more available projects => pick the web project

6) Next

7) Next

8) Launch profiling after the wizard finishes. checked

9) Next

10) Performance Session file c:\Users\...\Performance file.psess does not exist or is invalid.

11)  Click Ok.

12) Object null or not set to an instance of an object.

The file exists, I can see it in the specified directory.  If I try to open it from the file menu, I get the same error message, minus the object null message.

Answer 1

Hi Blainer0121,

In my side, I followed with your steps, and I could get the performance file in my project path.

>>Object null or not set to an instance of an object

According to this error, this issue is caused by VS has been damaged. Please refer to the following scenarios:

1). Delete the contents from the following folders:    

      C:\Users\{user}\AppData\Local\Microsoft\VisualStudio

      C:\Users\{user}\AppData\Local\Microsoft\VSCommon

2). Sometimes we need to reset our VS:

lick Start->Developer Command Prompt for VS-> type “devenv.exe /ResetSettings”

Hope it helpful for you.

Sincerely,

Oscar

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