Issue
When customize the item form is clicked to browse to Nintex Forms designer to design a form the following error might occur:
The expression prefix 'NFResources' was not recognized. Please correct the prefix or register the prefix in the section of configuration.
The expression prefix 'NFResources' was not recognized. Please correct the prefix or register the prefix in the section of configuration.
Resolution
- Navigate to: Central Administration > Application Management > Manage web applications
- Select the Web application to use for Nintex Forms.
- Click on Manage Features from the ribbon.
- Deactivate (if active).
- Re-activate the "Nintex Forms feature.
Additional Information
This occurs when the correct entries were not added to the web.config file when the Forms solution package is deployed.