Reports in CRM not working - The type initializer for 'Microsoft.Crm.LocatorService' threw an exception.

We had a customer running into an issue while trying to run reports from CRM. Of course, the error in the CRM UI was the usual rsProcessingAborted error - Cannot create a connection to Data Source. So as I always need to do, I dug into the SSRS logs. The errors I could extract from there were:

Microsoft.Crm.Reporting.DataExtensionShim.Common.ReportExecutionException: The type initializer for 'Microsoft.Crm.LocatorService' threw an exception. ---> 

Microsoft.Crm.Reporting.DataExtensionShim.Common.ReportExecutionException: Cannot load Counter Name data because an invalid index 'W3SVC_W3WP' was read from the registry.

From what I could surmise, there was something wrong with the performance counters on the server(s). I did find that Microsoft does have a KB for this error but it is in reference to update rollups on the CRM Outlook Client. Luckily for me, the fix turned out to be similar!

1. On the CRM Server, open an administrative command prompt.
2. Type “lodctr /r” and press enter.
3. You will then get the message ‘Info: Successfully rebuilt performance counter setting from system backup store’.
4. Restart CRM Services and run an IISReset
5. On the SSRS Server, open an administrative command prompt.
6. Type “lodctr /r” and press enter.
7. You will then get the message ‘Info: Successfully rebuilt performance counter setting from system backup store’.
8. Restart SSRS Services.

After following the above process, reports in CRM began working again. The commands run rebuild the performance counters.