The service on Local Computer started and then stopped

I was seeing the below error on a windows service that I had created.

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Services
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The xxx service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other services or programs.
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OK  
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The easiest way to debug this error was to launch the debugger from the service in the OnStart method like below:

protected override void OnStart(string[] args)
{
     System.Diagnostics.Debugger.Launch();
     // Rest of your code
}