The source was not found, but some or all event logs could not be searched.

The complete exception is :

System.Security.SecurityException: The source was not found, but some or all event logs could not be searched.

This happen when you are using in your code (C#) windows log events.

EventLog.WriteEntry(method, log_message, type);

Now, how to create this source in windows event log.

Solution

Using windows powershell.

  1. Run windows powershell under administrative privileges
  2. Run the following command New-EventLog -LogName Application -Source <YOUR SOURCE>

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