Hello @qumbaqa ,
you can try to manually remove the installed Geospatial Extension. To do so close KNIME Analytics Platform and go to the installation folder using Windows Explorer. In the installation folder go into the features folder and delete the sdl.harvard.features.geospatial folder
Then go to the plugins folder and delete the two sdl.harvard.geospatial folders
Restart KNIME Analytics Platform, update to the latest version of the KNIME AP and install the Geospatial Extension again. If this fails you need to do a fresh installation of the KNIME Analytics Platform with version 4.7.4 and try to install the extension again.
Bye
Tobias