Error sh: 1: file: not found thrown but change report is generated.

[SainathSharmadha]

I am running pkgdiff on an ubuntu docker container:
root@d73ffc6c819a:/# pkgdiff spark-core_v1.jar spark-core_v2.jar
reading packages ...
comparing packages ...
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found
sh: 1: file: not found

creating report ...
result: CHANGED (0.4%)
report: pkgdiff_reports/spark-core/v1_to_v2/changes_report.html

[locobastos]

Where your docker comes from?

[SainathSharmadha]

@locobastos , its an ubuntu image.

[locobastos]

How to reproduce this bug, exactly? What your report says?

Provides more informations if you want help.
I don't think this is a PkgDiff bug as this software does not use ONLY one command.
It is able to produce a report because it checks many other things which do not need "file" command.