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    Nintex Knowledge Base

    Error "There are some problems with the design of this form ... <control name> is not defined" After Deleting Control

    Status: Validated

    ISSUE
    After deleting a control with a button that calls JavaScript, the following error occurs:

    An embedded page at formso365.nintex.com says:
    There are some problems with the design of this form and this is causing some errors. Please contact the designer of this form to rectify these.

    The form is reporting the following errors:
    <control name> is not defined

    This error persists even after deleting the form and creating a new version with the default SharePoint form.
    ERROR CODE
    RESOLUTION
    1. In SharePoint designer, navigate to the site > All Files > Lists > ListName > Item.
    2. Delete the NFForm.xml file.
    3. Navigate to https://tenanturl/site/NintexFormXml.
    4. Find and delete the file that contains the matching List GUID.
    5. Create a new form in the designer.
    ADDITIONAL INFORMATION
    Nintex Forms stores two copies of the form and they can conflict with each other. Deleting both copies of the form resets the form completely.
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