Running the AnalysisThreads code reports an error

[ghost]

hello all, code:

!ds9 ./data/LAT_GRB_analysis/GRB080916C_counts_map.fits

erro

/bin/bash: line 1: ds9: command not found

Note: ENV: conda env system: ubuntu 20.04 LTS python v3.9.13 fermitools v2.2.0, fermipy v1.1.6

[donhorner]

ds9 is a FITS image viewer commonly used in astronomy. You can download it from CFA or install it with package manager. You can also look at the map with fv or really anything that can view FITS files.

[ghost]

I'm sorry, I looked at the ds9 website you posted, and I didn't see ds9 installed with package management tools (for example, conda, pip, etc.)

[Areustle]

https://installati.one/ubuntu/20.04/saods9/

[ghost]

Thanks! @Areustle @donhorner

[ghost]

Hello, I get an error when I use the fv command in Jupyterlab after installing fv, what's the matter?

code:
!fv ./data/LAT_GRB_analysis/lc_zmax100.fits

zsh:1: command not found: fv

I have no problem typing fv in the terminal:

[mfacorcoran]

Hi,

It may be that the HEADAS environment was not set before you started the jupyter server.  If that’s the case, quit the server, go to a terminal window and initialize HEASoft

% source $HEADAS/headas-init.sh

Then start the jupyter server in that terminal window.

Best regards

Mike Corcoran

---

Dr. Michael F. Corcoran

HEASARC

Goddard Space Flight Center, Code 662

Greenbelt, MD 20771

---

From: Jisans Ayesa @.> Reply-To: fermi-lat/Fermitools-conda @.> Date: Friday, September 30, 2022 at 9:27 AM To: fermi-lat/Fermitools-conda @.> Cc: Subscribed @.> Subject: Re: [fermi-lat/Fermitools-conda] Running the AnalysisThreads code reports an error (Issue #131)

Hello, I get an error when I use the fv command in Jupyterlab after installing fv, what's the matter? code: !fv ./data/LAT_GRB_analysis/lc_zmax100.fits

zsh:1: command not found: fv

I have no problem typing fv in the terminal:

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you are subscribed to this thread.Message ID: @.***>

[ghost]

@mfacorcoran There is no HEADAS environment installed in my system, because the installation will affect fermitools GUL, there will be two warnings,

WARNING: You have LD_LIBRARY_PATH set. This might interfere with the correct functioning of conda and the Fermi ST

WARNING: You have PYTHONPATH set. This might interfere with the correct functioning of conda and the Fermi ST

[ghost]

Hello all, Today, after I reinstalled heasoft, I used it, but fv reported an error

 fv
application-specific initialization failed: couldn't connect to display ":0"
Error in startup script: couldn't connect to display ":0"
    while executing
"load /home/jian/workspace/heasoft-6.30.1/tcltk/x86_64-pc-linux-gnu-libc2.31/lib/libtk8.6.so Tk"
    ("package ifneeded Tk 8.6.11" script)
    invoked from within
"load /home/jian/workspace/heasoft-6.30.1/tcltk/x86_64-pc-linux-gnu-libc2.31/lib/itk4.1.0/libitk4.1.0.so Itk"
    ("package ifneeded Itk 4.1.0" script)
    invoked from within
"package require Itk"
    (procedure "fvInit" line 11)
    invoked from within
"fvInit"
    ("eval" body line 1)
    invoked from within
"eval fvInit $argv"
    (file "/home/jian/workspace/heasoft-6.30.1/x86_64-pc-linux-gnu-libc2.31/lib/fv/fvInit.tcl" line 18)

Why would it report an error?

[donhorner]

It's difficult to say exactly why you see that error. It looks like there's an issue connecting to X-windows. Maybe the DISPLAY environment variable isn't set correctly?

To go back to the previous issues, HEASoft and the Fermitools usually work together without any problems. The warnings are just given if those environment variable are set at all.

[ghost]

Yes, some basic settings are required when installing HEAsoft. However, these settings will cause warnings to pop up when entering the fermitools environment. I found that these warnings did not affect the work. In addition, I can now use FV, thank you for your help!