Error: Method not found Blackbaud.PIA.RE7.BBInterfaces.IBBSessionContextLuminatePluginBase.IBBLuminateMergeMain.get_Context - when working in Luminate Online plug in for The Raiser's Edge

The following error or variations of this error may occur in the Raiser's Edge Luminate Online plugin after performing an update to the plugin version and/or web service version:

Error: Method not found: 'Blackbaud.PIA.RE7.BBInterfaces.IBBSessionContextLuminatePluginBase.IBBLuminateMergeMain.get_Context()'

RELO Plugin Error after Update
RELO Plugin Error
This appears to occur for versions that failed to auto-update. To resolve this issue:
  1. Have all users log out of Raiser’s Edge and the RELO plug-in
  2. Navigate to the Control Panel on the workstation and uninstall the Raiser’s Edge/Luminate Online plugin
  3. Navigate to the following folder location: C:\Program Files (x86)\Blackbaud\The Raisers Edge 7\Custom\Luminate Online folder
  4. Rename the folder to “~Luminate Online”
  5. Browse to Blackbaud.com and re-download the Luminate Online plug-in in order to reinstall it
If you are hosted by Blackbaud, click Chat with Support, reference this article, and provide the following information so we can assist you:   

Steps to Duplicate

1. Install an update to the Raiser's Edge Luminate Online (RELO)  plugin and/or Web Services for RELO
2. Launch the RELO plugin and attempt to process a constituent update or download a donation transaction

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