OpenDCL Runtime Error / Helper Library Is Out of Date (Using a Land F/X Tool)

Issue

You saw an error message similar to the following:

OpenDCL Runtime Error: An OpenDCL function argument processing exception has occurred!

Error NIL value not allowed

Function: dcl_Form_show

Argument: 0

You may have also received a message that The helper library is out of date.

Cause

Your OpenDCL library is not loaded correctly, which is preventing you from accessing content from the Land F/X database.

Solution

First, try restarting CAD. In most cases, this will resolve the issue.

If, after restarting CAD, you are still receiving an OpenDCL error message, your next step should be to install the latest version of OpenDCL.

Restart CAD once again. You should now be able to perform the action that generated the error message.