[Qgis-user] Georeferencer says "Could not create destination file"

[Adam Nielsen]

Hi all,

I'm georeferencing some images and the first two worked fine (and
continue to work fine) however the third one refuses to work, with the
QGIS Georeferencer saying:

  Transform Failed: Could not create destination file.

The QGIS message window repeats the same message but no further
information is given.

If I change the algorithm to Polynomial then it lets me create a GDAL
script, and if I run that script on the command line unchanged then it
works fine.  Yet trying to run that same process through the
georeferencer fails with the above error.  (I actually want to use a
different transform and it tells me it can't create a GDAL script for
that algorithm, so I'm unable to use that as a workaround).

It's not a file permission issue as the previous two files were read
from and written to the same folder, with the same structure of
filename (just different numbers in the filenames).

It seems something else is failing and the message about being unable
to create the destination file is a red herring, but I'm not sure how to
get more debugging information out of the georeferencer.

Any ideas how I could troubleshoot this further?  I'm QGIS 4.0.3 under
Linux.

Cheers,
Adam.