I am trying to run Cesium terrain Builder on Ubuntu 14.04. On running ctb-tile dem.tif
I get the error:
Error: could not open GDAL datasetERROR 4: `dim.tif' does not exist in the file system, and is not recognised as a supported dataset name. Error: could not open GDAL datasetError: could not open GDAL dataset
I have also tried with the full directory name.
What seems to be the issue ?