Bug report #20977
Merge Raster fails with ImportError: No module named _gdal_array
|Affected QGIS version:||3.4.3||Regression?:||No|
|Operating System:||Windows 10||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||duplicate|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||28796|
I attempted to merge several DEMs downloaded as GeoTiff rasters, but Merge Raster fails with ImportError: No module named _gdal_array.
Command I used was Processing - Raster miscellaneous - Merge
Used various setting: Int16, Float32, Profile default and with high compression, still fails. An empty 'nan' raster was also generated. Another QGIS user report same error, so it's not unique to me.
Here's the error:
File "C:\OSGEO4~1\apps\Python27\lib\importlib\__init__.py", line 37, in import_module
ImportError: No module named _gdal_array
Perhaps Gdal was compiled without gdal_array? Curiously, QGIS 2.18 LTR is also affected.