[GRASS-user] Reading raster map <dem@map> request for row 2 is outside region

[G]

I have problems reprojecting a very simple (2 by 4) raster into the full,
unprojected globe. Below are the details. Any hints?

G

----------------------
r.proj --overwrite --verbose input=dem location=old mapset=map resolution=1
Input Projection Parameters:  +proj=longlat +no_defs
+a=6378137 +rf=298.257223563
Input Unit Factor: 1
Output Projection Parameters:  +proj=longlat +no_defs
+a=6378137 +rf=298.257223563
Output Unit Factor: 1
Input:
Cols: 4 (4)
Rows: 2 (2)
North: 50.000000 (50.000000)
South: 48.000000 (48.000000)
West: -139.000000 (-139.000000)
East: -135.000000 (-135.000000)
EW-res: 1.000000
NS-res: 1.000000
Output:
Cols: 4 (360)
Rows: 2 (180)
North: 50.000000 (90.000000)
South: 48.000000 (-90.000000)
West: -139.000000 (-180.000000)
East: -135.000000 (180.000000)
EW-res: 1.000000
NS-res: 1.000000
Allocating memory and reading input map...
Reading raster map <dem at map> request for row 2 is outside region
ERROR: Error reading input

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