Can't installing GuidedLDA, message error : build_dist.sh: 3: set: Illegal option -o pipefail

[MathildeDflr]

Hi everyone !

I am trying to install the Guidedlda package, but I am not successfull neither with 'pip install guidedlda' nor with :

https://github.com/vi3k6i5/GuidedLDA
cd GuidedLDA
sh build_dist.sh
python setup.py sdist
pip install -e .

After setting the right path and running 'sh build_dist.sh', I get the following message error :

'build_dist.sh: 3: set: Illegal option -o pipefail'

I have no idea what the problem could be, I installed Ubuntu on Windows 10 to run the command and I updated Python (3.9).
Any idea ?