TYPO3 Exception 1446996319

Note

Below, the TYPO3 community may have provided additional information or solutions for this exception. However, these may or may not apply to your particular case. If you can provide more information, you should come back here and add your experience and solution steps to this issue once you have resolved it.

General TYPO3 troubleshooting tips can be found in the section "Troubleshooting" of the menu, and live support is available in the TYPO3 Slack channel #typo3-cms. (See How to get your TYPO3 Slack account.)

To add your experience, click "Edit on GitHub" above and follow the "Edit on GitHub" workflow. Also check out our tip on Coding Style and reST.

Configuration retrieved from FlexForm is incomplete or not of type "inline"

#1446996319: Configuration retrieved from FlexForm is incomplete or not of type "inline"
UnexpectedValueException thrown in file
/../typo3/sysext/backend/Classes/Controller/FormInlineAjaxController.php in line 935.

Happens when attaching an image to a new non-saved Fluid content element.

Also:

UnexpectedValueException thrown in file
/.../typo3/sysext/backend/Classes/Controller/FormInlineAjaxController.php in line 909.

TYPO3 v7.6.32 Happens when attaching an image to an existing content element.