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I am trying to install artip on Ubuntu (16.04) and I get this error:
Setting up casap-pip
Traceback (most recent call last):
File "setup_casapy_pip.py", line 291, in
python_version = version= get_python_version_linux()
File "setup_casapy_pip.py", line 97, in get_python_version_linux
version, casapy_parent_path, lib = get_python_path_linux()
File "setup_casapy_pip.py", line 92, in get_python_path_linux
raise ValueError("Could not determine Python version")
ValueError: Could not determine Python version
./setup.sh: line 28: casa-pip: command not found

I was trying to run ARTIP on some GSB GMRT data and it crashes everytime on the following error when running the task fluxscale

fluxscale Caught Exception: Found multiple gain solutions in a single timestamp for fieldid=1. Please check the input Caltable.

I don't understand it at all as the reference is set to "0,3" below the full casa output from the casa.log
Any idea what is going wrong here

##### Begin Task: fluxscale          #####

2018-04-21 09:56:25 INFO fluxscale:::: fluxscale(vis="pathtoms/test.ms",caltable="pathtoms/Artip_Out//test/tmp_amp2.gcal",fluxtable="pathtoms/Artip_Out//test/flux.gcal",reference="0,3",transfer=[''],
2018-04-21 09:56:25 INFO fluxscale::::+ listfile="",append=False,refspwmap=[-1],gainthreshold=-1.0,antenna="",
2018-04-21 09:56:25 INFO fluxscale::::+ timerange="",scan="",incremental=False,fitorder=1,display=False)
2018-04-21 09:56:25 INFO fluxscale::calibrater::open Using NEW VI2-driven calibrater tool
2018-04-21 09:56:25 INFO fluxscale::calibrater::open Opening MS: /home/peter/Current_Reduction/J0754+25/23_Sept/test.ms for calibration.
2018-04-21 09:56:25 INFO fluxscale::Calibrater:: Initializing nominal selection to the whole MS.
2018-04-21 09:56:25 INFO fluxscale::calibrater::fluxscale Beginning fluxscale--(MSSelection version)-------
2018-04-21 09:56:25 INFO fluxscale:::: Assuming all non-reference fields are transfer fields.
2018-04-21 09:56:25 INFO fluxscale:::: Found reference field(s): 3C48 3C286
2018-04-21 09:56:25 INFO fluxscale:::: Found transfer field(s): 0741+312
2018-04-21 09:56:25 SEVERE fluxscale::Calibrater::fluxscale Caught Exception: Found multiple gain solutions in a single timestamp for fieldid=1. Please check the input Caltable.
2018-04-21 09:56:25 SEVERE fluxscale:::: Exception Reported: Error in Calibrater::fluxscale.
2018-04-21 09:56:25 SEVERE fluxscale:::: An error occurred running task fluxscale.
2018-04-21 09:56:53 INFO ::casa

I was interested in trying ARTIP on some uGMRT data after seeing Gupta et al. (2020; arXiv:2007.04347). However this repository has not been updated in the last three years. Does this still represents the state-of-the-art of ARTIP or did you move to a different repository?