I tried to installed a new software in KNIME, direct after the installation nothing happened, I also cannt find the expected new node. However, today (one day after installation) I cannt intall any extension, always get the following error messages.
How can I solve this problem?
Thanks in advance.
Try removing these repositories from your Update site.
Go to Preferences → Install/Update → Available Software Sites, here you should see these invalid sites, just remove them.
I hope it will help.
I cannt find the invalid sites in the installed software list.
I founf now the correct list, and solved the problem. Thanks!