CODEWITHSUNDEEP
typo3content-management-systemtypo3-9.xtypo3-extensions
Droemmelbert
Droemmelbert

Reputation: 155

Why does this viewHelper error occur in TYPO3 and how do I fix ilt?

When trying to get my custom extension to run in TYPO3 v9.5.11, I get this error message:

Undeclared arguments passed to ViewHelper
TYPO3\CMS\Fluid\ViewHelpers\FlashMessagesViewHelper: renderMode, class, id.
Valid arguments are: queueIdentifier, as

The error Message

I do not exactly know who is trying to pass arguments to the ViewHelper and why it would be failing.

Would creating my own viewHelper be beneficial in this scenarion or is there an easy way of fixing the issue?

Upvotes: 0

Views: 617

Answers (1)

Thomas Löffler
Thomas Löffler

Reputation: 6144

in your custom extension, the FlashMessages ViewHelper is used. You can easily search recursively for <f:flashMessages in the extension folder.

The error message gives you the changes, you need to do:

Valid arguments are: queueIdentifier, as

But in your extension, the arguments renderMode, class and id are used.

You need to remove the invalid arguments, maybe the documentation gives you the needed hints: https://docs.typo3.org/other/typo3/view-helper-reference/9.5/en-us/typo3/fluid/latest/FlashMessages.html

Upvotes: 2

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