TYPO3 Exception 1224485398¶
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.)
You have to nest the ViewHelpers correctly, for example:
<f:link.external ..> needs </f:link.external>
Most of the time this error will be triggered if you forget to correctly close a single tag with a slash. (e.g. you need to use <f:example /> not <f:example>)
Error in ViewHelper¶
If a viewHelper is not properly programmed, any argument might break templates. It's important to register all arguments properly to get the templates parsed correctly. To test a ViewHelper, remove all arguments in the fluid template to check if the nesting is recognized right without arguments. The error message is misleading in this case because the reason is not related to the notation in the template but to faults in the ViewHelper.