Compiling problem. "System cannot find the file specified".

I try to compile my Quake level and this happens:

Copying Files…
The system cannot find the file specified.
Converting map…
--------------QBSP--------------
---- qbsp / ericw-tools v0.18.1 ----
Input file: Another.map
Output file: Test.bsp

---- LoadMapFile ----
************ ERROR ************
Failed to open Another.map: No such file or directory
--------------VIS---------------
---- vis / ericw-tools v0.18.1 ----
usage: vis -threads #] -level 0-4] -fast] -v|-vv] -credits] bspfile
-------------LIGHT--------------
---- light / ericw-tools v0.18.1 ----
usage: light [options] mapname.bsp

Performance options:
-threads n set the number of threads
-extra 2x supersampling
-extra4 4x supersampling, slowest, use for final compile
-gate n cutoff lights at this brightness level
-sunsamples n set samples for _sunlight2, default 64
-surflight_subdivide surface light subdivision size

Output format options:
-lit write .lit file
-onlyents only update entities

Postprocessing options:
-soft [n] blurs the lightmap, n=blur radius in samples

Debug modes:
-dirtdebug only save the AO values to the lightmap
-phongdebug only save the normals to the lightmap
-bouncedebug only save bounced lighting to the lightmap
-surflight_dump dump surface lights to a .map file
-novisapprox disable approximate visibility culling of lights

Experimental options:
-lit2 write .lit2 file
-lmscale n change lightmap scale, vanilla engines only allow 16
-lux write .lux file
-bspxlit writes rgb data into the bsp itself
-bspx writes both rgb and directions data into the bsp itself
-novanilla implies -bspxlit. don’t write vanilla lighting

Overridable worldspawn keys:
-dist [n]
-range [n]
-anglescale [n] | -anglesense [n]
-gamma [n]
-addmin [0,1]
-light [n] | -minlight [n]
-minlight_color [n n n] | -mincolor [n n n]
-spotlightautofalloff [0,1]
-dirt [0,1] | -dirty [0,1]
-dirtmode [n]
-dirtdepth [n]
-dirtscale [n]
-dirtgain [n]
-dirtangle [n]
-minlight_dirt [0,1]
-phong [0,1]
-bounce [0,1]
-bouncestyled [0,1]
-bouncescale [n]
-bouncecolorscale [n]
-sunlight [n]
-sunlight_color [n n n]
-sun2 [n]
-sun2_color [n n n]
-sunlight2 [n]
-sunlight2_color [n n n] | -sunlight_color2 [n n n]
-sunlight3 [n]
-sunlight3_color [n n n] | -sunlight_color3 [n n n]
-sunlight_dirt [n]
-sunlight2_dirt [n]
-sunlight_mangle [n n n] | -sun_mangle [n n n]
-sun2_mangle [n n n]
-sunlight_penumbra [n]
The system cannot find the file specified.
The system cannot find the file specified.
The system cannot find the file specified.
Press any key to continue . . .

Unless you provide it with complete file path, it’s looking for the map in the current working directory. Change directory / copy the map file / use a GUI.

That error always came up at the end of the compile, on my new large map. Never figured it out, and it doesn’t seem to matter.

Linux? Make sure your filNAmE case matches.