I have manually installed RetroPie, using the terminal and some tutorials.. Finally ready to start everything up... and then get this error:

Error Creating SDL window! Could not get EGL display Renderer failed to initialize! Window failed to initialize!

Please help! Thanks you

I have manually installed RetroPie, using the terminal and some tutorials.. Finally ready to start everything up... and then get this error:

Error Creating SDL window! Could not get EGL display Renderer failed to initialize! Window failed to initialize!

Then I changed the dtoverlay=vc4-kms-v3d code. Taking it off (and later also back on again in the config.txt.) Also Tried changing GL drivers.

Now the error is: * failed to add service - already in use?

What to do now?