SwapTransfers: unmatched

This is for Half-Life. After compiling I got an error: "WARNING: SwapTransfers: unmatched"

This is what it looked like but the message was repeated probably about 100 times.

SwapTransfersTask: 0...1...WARNING: SwapTransfers: unmatched
WARNING: SwapTransfers: unmatched
2...WARNING: SwapTransfers: unmatched
WARNING: SwapTransfers: unmatched
WARNING: SwapTransfers: unmatched
WARNING: SwapTransfers: unmatched

1) What does this mean?
2) Would it be okay to continue on with the map anyway and ignore this, since it does still work fine.

Also, this happened when creating something with several different pieces and at somewha abnormal shapes. (So I know this is where the error came from) Also, at first there was no error, but after I moved it then it came up and can't seem to get rid of the error. But is it ignorable?

Post your compile log please

---

Posting And You

see if this helps:

** Executing...
** Command: Change Directory
** Parameters: "C:\SIERRA\Half-Life"

** Executing...
** Command: C:\PROGRA~1\VALVEH~1\tools\qcsg.exe
** Parameters: "c:\program files\valve hammer editor\maps\ground zero mars maps\gzm2_unholy_beacon"

qcsg.exe v2.8 (Jan 31 2000)
---- qcsg ----
entering c:\program files\valve hammer editor\maps\ground zero mars maps\gzm2_unholy_beacon.map
CreateBrush: 0...1...2...3...4...5...6...7...8...9... (1)
CSGBrush: 0...1...2...3...4...5...6...7...8...9... (0)
Using WAD File: \sierra\half-life\valve\cached.wad
Using WAD File: \sierra\half-life\valve\decals.wad
Using WAD File: \sierra\half-life\valve\gfx.wad
Using WAD File: \sierra\half-life\valve\halflife.wad
Using WAD File: \sierra\half-life\valve\liquids.wad
Using WAD File: \sierra\half-life\valve\spraypaint.wad
Using WAD File: \sierra\half-life\valve\xeno.wad
Using WAD File: \sierra\half-life\valve\barney.wad
Using WAD File: \sierra\half-life\valve\neilm5.wad
Using WAD File: \sierra\half-life\valve\redemptn.wad
Using WAD File: \sierra\half-life\valve\sysel.wad
Using WAD File: \sierra\half-life\valve\zhlt.wad
added 3 additional animating textures.
1 seconds elapsed

** Executing...
** Command: C:\PROGRA~1\VALVEH~1\tools\qbsp2.exe
** Parameters: "c:\program files\valve hammer editor\maps\ground zero mars maps\gzm2_unholy_beacon"

qbsp2.exe v2.2 (Dec 28 1998)
---- qbsp2 ----
writing c:\program files\valve hammer editor\maps\ground zero mars maps\gzm2_unholy_beacon.prt
1 seconds elapsed

** Executing...
** Command: C:\PROGRA~1\VALVEH~1\tools\vis.exe
** Parameters: "c:\program files\valve hammer editor\maps\ground zero mars maps\gzm2_unholy_beacon"

vis.exe v1.3 (Dec 30 1998)
---- vis ----
4 thread(s)
140 portalleafs
421 numportals
BasePortalVis: 0...1...2...3...4...5...6...7...8...9... (0)
LeafThread: 0...1...2...3...4...5...6...7...8...9... (1)
average leafs visible: 73
visdatasize:2276 compressed from 2520
1.0 seconds elapsed

** Executing...
** Command: C:\PROGRA~1\VALVEH~1\tools\qrad.exe
** Parameters: "c:\program files\valve hammer editor\maps\ground zero mars maps\gzm2_unholy_beacon"

qrad.exe v 1.5 (Apr 6 2000)
----- Radiosity ----
4 threads
[Reading texlights from 'C:\PROGRA~1\VALVEH~1\tools\lights.rad']
[1 texlights parsed from 'C:\PROGRA~1\VALVEH~1\tools\lights.rad']

1810 faces
89394 square feet [12872748.00 square inches]
6006 patches after subdivision
7 direct lights
BuildFacelights: 0...1...2...3...4...5...6...7...8...9... (0)
visibility matrix: 2.2 megs
BuildVisLeafs: 0...1...2...3...4...5...6...7...8...9... (1)
MakeScales: 0...1...2...3...4...5...6...7...8...9... (0)
transfer lists: 17.1 megs
SwapTransfersTask: 0...1...WARNING: SwapTransfers: unmatched
WARNING: SwapTransfers: unmatched
2...WARNING: SwapTransfers: unmatched
WARNING: SwapTransfers: unmatched
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WA

Warning: SwapTransfers: unmatched"
It's often a false problem in QRAD, but sometimes real. solutions:

use zoners compiling tools, especially HLRAD. other solutions are:

1. If the map lights fine, ignore it. End of problem.
2. Undo my most recent changes, and see if the map lights then.
3. Rigorously check for any bad brushes.
4. Delete some lights, starting with switchable lights.
5. Make some random changes in the map, usually by way of scaling some textures, and see if the map lights fine then. Scaling a texture changes how big the polygon ends up being on a large surface (and thus helps the speed), and it also affects the lighting of it. Outdoor areas usually have most of the textures scaled up 2x2 or larger. I would first pick textures that you won't really notice scaling on: near-black textures, rocks, concrete, asphalt, whatever.
6. Move random brushes around, or delete brush entities.
7. Pick a good spot and cut the map into two separate maps with a level transition. That is the most drastic but usually works if all else has failed. Other possible fixes from Neil include:
Use the "-extra" option.in HLRAD
Delete the offending brush (One case was angled on several sides to a point)."

taken from
http://www.slackiller.com/tommy14/errors.htm#swap

Thanks for the ideas!