Microsoft (R) VS Standard Collector Exception

Question

According to the page [Measure application performance from the command line], I issued the following two commands in a command prompt on Windows 10 and Visual Studio 2022 installed:

    > cd "C:\Program Files\Microsoft Visual Studio\2022\Professional\Team Tools\DiagnosticsHub\Collector"
    > VSDiagnostics.exe start 1 /attach:28240 /loadConfig:AgentConfigs\CPUUsageLow.json

But I get the following error:

    Microsoft (R) VS Standard Collector
    
    The file exists. (Exception from HRESULT: 0x80070050)
       at DiagnosticsHub.StandardCollector.Host.Interop.IStandardCollectorService.CreateSession(SessionConfiguration& sessionConfig, IStandardCollectorClientDelegate clientDelegate)
       at Microsoft.DiagnosticsHub.StandardCollector.CollectorActions.Start(RuntimeOptions options, ICollectorHost collectorHost)
       at Microsoft.DiagnosticsHub.StandardCollector.Program.<Main>d__0.MoveNext()

The first time, the command succeeded, and I collected the data with the command:

    VSDiagnostics.exe stop 1 /output:C:\temp\VSDiagnostics.diagsession

The second time, I left it running longer, and because VSDiagnostics.exe stop took a lot of time, I pressed Ctrl-C and stopped it. Since then, I get the above error. I deleted C:\temp\VSDiagnostics.diagsession but the error persists. There is probably somewhere a temporary file, does somebody know where that could be?

Answer 1

Hi @ΠΑΠΠΑΣ Ι. ΑΛΕΞΑΝΔΡΟΣ, 

Welcome to Microsoft Q&A! 

You need to first stop the running collection session. 

You can run the following command line to stop the active collection session.

VSDiagnostics.exe stop 1 /output:C:\temp\VSDiagnostics.diagsession 

Then, running the command again:

VSDiagnostics.exe start 1 /attach:28240 /loadConfig:AgentConfigs\CPUUsageLow.json 

Sincerely,

Anna

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