Error: Unhandled exception has occurred in a component in your application - when previewing a Custom Report

Error: Unhandled exception has occurred in a component in your application. If you click Continue, the application will ignore this error and attempt to continue. Missing parameter values.

This error may occur in Raiser's Edge 7.94 if the Crystal report contains a parameter field.
Screeshot of RE Custom Report Error
Download and install the latest patch, which contains all fixes from previous patches. If you are running an older version, download and install the latest version and then the patch. 

Previous workaround:
  1. Open the Export that is linked to the Custom Report
  2. Click Export Now and save the data to the .mdb file
  3. Open the report in the Crystal Reports application
  4. Refresh the report to preview the data

Environment

 7.94.6116, patch 2

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