"Only output files may be temporary"

[spimager]

I keep getting the following error:
SyntaxError:
Only output files may be temporary
File "/data/Data/snakemake-workflows/spim_registration/timelapse/Snakefile", line 177, in

Is there a particular workaround for this problem? I've trawled through the config file and the snakefile and can't seem to find anything wrong at all.

Perhaps it's the python or snakemake version? I tried Python 3.4 and 3.5 as well as the latest Snakemake build (3.7.0) and 3.5.0.

Any ideas?

[schmiedc]

Fixed with the newest commit: bc58f74

Temporary files are not removed anymore.