VBSP.exe has stopped working
VBSP can crash if there are no entities or world geometry in your scene.
Compile Errors
Compiling your assets for Source sometimes generates errors. This page lists categories for finding solutions to compile problems.
OSL WorldVertexTransition
The OSL Shader for WorldVertexTransition.
Unknown System Exception
Steps on fixing problems with an Unknown System Exception when importing files.
Rotating Textures
Instructions on creating VMTs that animate the texture rotation.
Displacement Proxies
Displacement Proxies allow teams to work more efficiently with displacements in multiple files.
Entities are Missing in Exported Scene
Solutions on missing entities in exported game level
Information on why some entities might not export into the game and how to fix that.
Illegal Characters in Path
Solving some problems with special characters and illegal characters in filename paths.
Imported Brush UV Scale Wrong
Fix for importing correct UVs on brushes when the source texture is not a power of 2.