Quake 1 Ericwtools compile error

Copying Files...
        1 file(s) copied.
Converting map...
--------------QBSP--------------
---- qbsp / ericw-tools 2.0.0-alpha4 ----

--- Options Summary ---

running with lower priority
Input file: C:\Quake_mapedit\working\unnamed_2.map
Output file: C:\Quake_mapedit\working\unnamed_2.bsp

INFO: using built-in palette.
---- LoadMapFile ----
WARNING: unnamed_2.map[line 1054]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1063]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1072]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1081]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1090]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1099]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1108]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1117]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1126]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1135]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1144]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1153]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1162]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1171]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1180]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1189]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1727]: brush has multiple face contents (SKY | MIRROR_INSIDE[false] vs SOLID | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1740]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1745]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1853]: brush has multiple face contents (SKY | MIRROR_INSIDE[false] vs SOLID | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1881]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
WARNING: unnamed_2.map[line 1890]: brush has multiple face contents (SOLID | MIRROR_INSIDE[false] vs SKY | MIRROR_INSIDE[false]), the former will be used.
     34 entities
     31 unique textures
    162 texinfos
    390 unique planes

---- ProcessMapBrushes ----
INFO: world extents calculated to 5512 units
[100%] time elapsed: 0.005s
      217 brushes
    1,291 sides
       33 side bevels

            0 texture frames added
WARNING: unable to find texture skip
WARNING: unable to find texture __TB_empty
Processing hull 0...
---- Brush_LoadEntity ----
[100%] time elapsed: 0.006s
---- CountBrushes ----
    197 SOLID brushes
      1 WATER brushes
      2 SLIME brushes
     17 SKY brushes
    217 brushes total
    1,291 visible sides
INFO: calculating BSP for 217 brushes with 1291 sides
---- BrushBSP ----
      217 brushes
    1,175 visible faces
      116 non-visible faces
[done] time elapsed: 0.013s
    1,757 nodes
       45 non-visible nodes
    1,306 expensive split nodes
      451 mid-split nodes
    1,758 leaves
---- CountLeafs ----
       26 SLIME leafs
        3 WATER leafs
      949 EMPTY leafs
      684 SOLID leafs
       96 SKY leafs
    1,758 leafs total
    18 max tree height
    13 avg tree height
---- MakeTreePortals ----
[100%] time elapsed: 0.009s
---- CalcTreeBounds ----
[done] time elapsed: 0.002s
    7,493 tree portals
---- FillOutside ----
WARNING: Reached occupant "light" at (904 344 88), no filling performed.
Leak file written to unnamed_2.pts
---- WriteDebugPortals ----
            9 portals written to unnamed_2.leak.prt
[done] time elapsed: 0.004s
---- MakeTreePortals ----
[100%] time elapsed: 0.007s
---- CalcTreeBounds ----
[done] time elapsed: 0.001s
    7,493 tree portals
---- MarkVisibleSides ----
    3,008 sides visible
---- MakeFaces ----
    2,858 makefaces
      431 merged
      873 subdivided
---- PruneNodes ----
    75 nodes pruned
---- CountLeafs ----
       26 SLIME leafs
        3 WATER leafs
      949 EMPTY leafs
      609 SOLID leafs
       96 SKY leafs
    1,683 leafs total
    18 max tree height
    13 avg tree height
---- TJunc ----
[100%] time elapsed: 0.014s
    1,972 edges added by tjunctions
    3,104 faces optimized through MWT
    8,175 triangles computed from MWT
      489 faces created via optimization of MWT triangles
---- EmitFaces ----
    7,846 edges
    3,612 faces
Processing hull 1...
WARNING: Reached occupant "light" at (1048 1000 184), no filling performed.
Processing hull 2...
WARNING: Reached occupant "light" at (824 808 -104), no filling performed.
---- FinishBSPFile ----
Writing unnamed_2.bsp as Quake BSP bsp29
Wrote unnamed_2.bsp

count   lump name    byte size
      1 models               64
    405 planes             8100
   3758 vertexes          45096
   1682 nodes             40368
    141 texinfos           5640
   3612 faces             72240
  18774 clipnodes        150192
   1075 leafs             30100
   3927 marksurfaces       7854
   7847 edges             31388
  15418 surfedges         61672
     31 textures         210104
        lightdata             0
        visdata               0
        entdata            1812

0.448s seconds elapsed
Press any key to continue . . .
--------------VIS---------------
---- vis / ericw-tools 2.0.0-alpha4 ----

--- Options Summary ---

running with lower priority
LoadBSPFile: 'unnamed_2.bsp'
BSP is version Quake BSP bsp29
INFO: using built-in palette.
************ ERROR ************
LoadPrtFile: unknown header/empty portal file unnamed_2.prt

Press any key to continue . . .