unable to install Af Utility Nodes extension knime versions 5.2.1
Hi @Isamira and welcome to the KNIME community forum.
Generally it is easier for others to help troubleshoot issues if you can give additional information.
What have you tried?
Do you have any screenshots you can share?
Do you see an error message? If so, what?
Have you been able to install other extensions ok? Which ones?