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You are correct that after using the measure it is not more obvious what the severe warnings are about. (It might be a bug). Anyway if you will not use the measure the error log is much clearer:

 ** Warning ** GetSurfaceData: Very small surface area[1.26107E-004], Surface=SURFACE 149
   ** Warning ** GetSurfaceData: WindowProperty:ShadingControl: "SHADING CONTROL 1" is not referenced by any window.
   ** Warning ** CalcSurfaceCentroid: 249 Surfaces have the Z coordinate < 0.
   **   ~~~   ** ...in any calculations, Wind Speed will be 0.0 for these surfaces.
   **   ~~~   ** ...in any calculations, Outside temperatures will be the outside temperature + 9.750E-003 for these surfaces.
   **   ~~~   ** ...that is, these surfaces will have conditions as though at ground level.
   ** Warning ** GetSurfaceData: There are 4 coincident/collinear vertices; These have been deleted unless the deletion would bring the number of surface sides < 3.
   **   ~~~   ** For explicit details on each problem surface, use Output:Diagnostics,DisplayExtraWarnings;
   ** Severe  ** GetSurfaceData: There are 1 degenerate surfaces; Degenerate surfaces are those with number of sides < 3.
   **   ~~~   ** These surfaces should be deleted.
   **   ~~~   ** For explicit details on each problem surface, use Output:Diagnostics,DisplayExtraWarnings;
   **  Fatal  ** GetSurfaceData: Errors discovered, program terminates.

You can see that the problematic surface is Surface 149 (to small) actually it is only a line or so, that is why E+ says: image description There are 4 coincident/collinear vertices and When it tries to autocorrect it it creates the warning you asked about ( degenerate surfaces). I could spot it by using Sketchup OS plugin and searching for that surface:

Since I peeked into your model: Most of the severe warnings are about surfaces with constructions of a window. If you intended to simulate a glass faced I think you should first create a wall and then create subsurface over the most but not all of it ( again OS shortcome) for the windows.

Also I could see that in many cases you specified wrong type surface Roof/Ceiling instead of floor and vice versa. Again this is easily spotted in Sketchup:

image description