Not able to install extentions

While trying to use nodes for prebuild workflow getting the following error.
“Find missing extensions has encountered a problem. Could not query updates site for missing extensions”
Thanks for the help.

Hi @Hilda,

Welcome to the KNIME community.
I assume the error is happening on the KNIME Analytics Platform, not on the Server?
Then it is most likely a network problem that you are facing. Maybe you need to configure a proxy so that your KNIME Analytics Platform can reach out to the update sites and install the missing extensions.
Please find more on this here