Classname contains invalid characters or has invalid format: Sys25\RnBase\Fluid\View\Action

[nwm-dev]

Bear with me as I haven't worked with this extension so far. I upgraded a typo3 instance from v9 to v10 and one view depending on this extension threw the above error. After some digging and testing it turned out changing the use in EXT:rn_base/Legacy/Controller/AbstractController.php

from use Sys25\RnBase\Fluid\View\Action

to use Sys25\RnBase\ExtBaseFluid\View\Action

fixed the error. To me it seems like an oversight while moving the Class to a new namespace. If someone could verify this who is more familiar with the extension I can create a PR if necessary.

[dzschille]

I got a similar Message (found with MK Logger):
"Classname contains invalid characters or has invalid format: Sys25\\RnBase\\Fluid\\View\\Action".

This came from my TS Config of mksearch which i added as here suggested:
viewClassName = Sys25\RnBase\Fluid\View\Action

I changed that to viewClassName = Sys25\RnBase\ExtBaseFluid\View\Action. This solved the error message.

Later i also had to change in some templates {namespace rn=Sys25\RnBase\Fluid\ViewHelper} to {namespace rn=Sys25\RnBase\ExtBaseFluid\ViewHelper}.