I'm not having a problem compiling nor am I haveing a problem with GTK, These errors show up, is there a way to fix them, or should I just ignore them?

When I load GTK-

WARNING: keyboard shortcuts init, no menu item found for command: "CenterXYView"

When I load my map...

WARNING: brush plane with no normal
WARNING: brush plane with no normal

The first warning, just ignore. I get that all the time.

As for the other error, check this error, its close to yours.

FloatPlane: bad normal


This error normally occurs when you are using vertex manipulation (pressing V on the keyboard and moving the brushes vertices). This could cause at least one face of the brush to be invisible in the game and usually causes the brush to disappear in the editor.

You could also get this error when you have a brush that is smaller than 1 grid unit thick, and try to re-size the brush with the grid size set to 1 unit or greater. This will cause the brush to disappear and become an infinite size. This may also produce extra errors like “Entity x, Brush x: degenerate plane”, “Entity x, Brush x: mirrored plane”, “WARNING: brush plane with no normal”

Use plugins \ bobToolz \ Brush Cleanup to fix this problem, then rebuild the brush.

Its necessary to snap to grid (Control+G; not smaller than 1 grid unit) all brushes AND curves after vertex (V) or edge (E) manipulation! 'Degenerated patches' can cause a BOGUS warning.

Dont create angular brushes per edge dragging. Use the Clipper tool.