You get this error message when trying to update or install a plugin: Not supported framework version: Net 4.6
You have followed this guide ( http://forum.gpsgate.com/viewtopic.php?f=29&t=19575 ) to upgrade to .NET 4.6 but you still cannot update any plugin.
Please follow those steps:
1. Login to SiteAdmin
2. Go to Plugins
3. Change URL to net46update.gpsgate.com
4. Update Patch.v4
After the update you have Patch.v4 v188.8.131.5214 installed.
5. Change URL back to update.gpsgate.com
6. Update Patch.v4
After the update Patch.v4 should be "green"
Now you should be able to continue updating the rest of the plugins.