Recently, I had to debug a .NET API hosted in an Azure Web App. The API failed to bootstrap and returned only a generic error message, which provided little insight into the issue.
Unfortunately, the application lacked Application Insights integration, making the troubleshooting process even more challenging.
Following is the approach I took.
I navigated to the Development Tools section of the App Service and accessed Advanced Tools to investigate further.
From there, I navigated to Kudu and accessed the Debug Console to further analyze the issue.
Navigate to wwwroot location and locate the particular exe of your API
I executed the .exe file directly in the Debug Console to capture the specific error message and identify the root cause of the issue.
By running the .exe file, I was able to see the detailed error message, which revealed that a required configuration item was missing for the application.
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