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Value cannot be null Parameter name format when opening Help

  • You get an error message that says "Value cannot be null Parameter: name format" when you right mouse click within Connexion client to bring up MARC Field help. 
Applies to
  • Connexion client 3.1

This means that either Connexion client doesn't have permission to reach out to our Help site or code something is wrong with your install. Try the following:

  • Confirm that your machine has a default web browser set up.
  • Confirm that your machine's anti-virus has an exception set up for Connexion client. 
  • Do a complete uninstall/reinstall of Connexion client on the machine. 

If the problem persists, contact OCLC Support with the error message,  Connexion client version and what you've tried.

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