This post has been republished via RSS; it originally appeared at: New blog articles in Microsoft Tech Community.
Update: Tuesday, 12 November 2019 20:50 UTC
Customers using .NET Core web applications monitored with Application Insights hosted in App Services in rare cases might experience crashes with following exception:
"System.IO.FileNotFoundException: Could not load file or assembly 'System.Diagnostics.DiagnosticSource, Version=4.0.4.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified."
Such exception can happen when .NET Core web application has a dependency on 'System.Diagnostics.DiagnosticSource%u2019 binary and has this binary file deployed to %u2018wwwroot%u2019 folder, which is rare.
We are aware of the issue and are rolling out the fix across different regions.
- Work Around: Please set previous version of monitoring extension by changing this app setting if you experience the above issue: ApplicationInsightsAgent_EXTENSIONVERSION=2.8.24
-Venkat