I am running Unreal 4.7.4 from Github on Linux. The editor seems to run fine, however, when I click on the “Connect to Source Control” button nothing happens – no popup window, no error message, nothing. In the message log I can see the following message several times: “Source control is disabled”. The same message is shown in the tooltip popup of the “Source Control” button in the toolbar.
When I start the editor from command line I can see the following message when trying to connect to Source Control:
STUBBED: FSourceControlModule::ShowLoginDialog - no Slate at /opt/UnrealEngine/Engine/Source/Developer/SourceControl/Private/SourceControlModule.cpp:162 (ShowLoginDialog)