TYPO3 Exception 1481380393¶

Note

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Might happen after upgrading to TYPO3 8.7 LTS or above.

Fix: Check the syntax in your FlexForms when using <displayCond>. See the displayCond in the TCA Reference:

Old:¶

<displayCond>
   <AND>
      <numIndex>FIELD:switchableControllerActions:!=:Event->list</numIndex>
   </AND>
</displayCond>

New:¶

<displayCond>
   FIELD:switchableControllerActions:!=:Event->list
</displayCond>