The guide you are currently reading covers the following problems you would get in exporting to source engine using the addon called Blender Source Tools.

List of problems and fixes

Getting the leaked element error when exporting

The way you can fix this problem is by having your SMD file in the same location as your QC.

Vertices compressed - not supported (when trying your model in gmod - error located in dev console)

The way you can fix this is by changing your vmt instructions inside from LightmappedGeneric to VertexLitGeneric, the reason behind this is due to garry's mod not supporting the lightmappedgeneric anymore.

example -

"LightmappedGeneric"
{
"$basetexture" "models/test"
"$model" 1
}

Replace with

"VertexLitGeneric"
{
"$baseTexture" "models/test"
"$model" 1
}


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