Salome 9.90 on Ubuntu 18.04 ImportError: No module named core.constants

Install & build
1

I’m trying to install Salome 9.90 on Ubuntu 18.04. After running the sat command recommended in the README I get this:

/Salome$ sat config SALOME-9.9.0
Traceback (most recent call last):
File “”, line 1, in
ImportError: No module named core.constants
Unhandled Error
Traceback (most recent call last):
File “/usr/lib/python2.7/dist-packages/twisted/application/app.py”, line 662, in run
runApp(config)
File “/usr/lib/python2.7/dist-packages/twisted/scripts/twistd.py”, line 25, in runApp
_SomeApplicationRunner(config).run()
File “/usr/lib/python2.7/dist-packages/twisted/application/app.py”, line 380, in run
self.application = self.createOrGetApplication()
File “/usr/lib/python2.7/dist-packages/twisted/application/app.py”, line 445, in createOrGetApplication
application = getApplication(self.config, passphrase)
— —
File “/usr/lib/python2.7/dist-packages/twisted/application/app.py”, line 456, in getApplication
application = service.loadApplication(filename, style, passphrase)
File “/usr/lib/python2.7/dist-packages/twisted/application/service.py”, line 414, in loadApplication
application = sob.load(filename, kind)
File “/usr/lib/python2.7/dist-packages/twisted/persisted/sob.py”, line 145, in load
fp = open(filename, mode)
exceptions.IOError: [Errno 2] No such file or directory: ‘twistd.tap’

Failed to load application: [Errno 2] No such file or directory: ‘twistd.tap’

I tried googling for anything similar but came up empty. Any help?

Thanks!

2

you need to run
./sat config SALOME-9.9.0 --check_system
to see if some missing dependencies need to be installed.
You can also simply launch SALOME:
./SALOME-9.9.0-UB18.04-SRC/salome
and let us know if you’re experiencing some issues.

3

That’s how I obtained the error. I ran

./sat config SALOME-9.9.0 --check_system

The error that I obtained is:

Traceback (most recent call last):
File “”, line 1, in
ImportError: No module named core.constants
Unhandled Error
Traceback (most recent call last):
File “/usr/lib/python2.7/dist-packages/twisted/application/app.py”, line 662, in run
runApp(config)
File “/usr/lib/python2.7/dist-packages/twisted/scripts/twistd.py”, line 25, in runApp
_SomeApplicationRunner(config).run()
File “/usr/lib/python2.7/dist-packages/twisted/application/app.py”, line 380, in run
self.application = self.createOrGetApplication()
File “/usr/lib/python2.7/dist-packages/twisted/application/app.py”, line 445, in createOrGetApplication
application = getApplication(self.config, passphrase)
— —
File “/usr/lib/python2.7/dist-packages/twisted/application/app.py”, line 456, in getApplication
application = service.loadApplication(filename, style, passphrase)
File “/usr/lib/python2.7/dist-packages/twisted/application/service.py”, line 414, in loadApplication
application = sob.load(filename, kind)
File “/usr/lib/python2.7/dist-packages/twisted/persisted/sob.py”, line 145, in load
fp = open(filename, mode)
exceptions.IOError: [Errno 2] No such file or directory: ‘twistd.tap’

Failed to load application: [Errno 2] No such file or directory: ‘twistd.tap’

So any help would be greatly appreciated.

4

before going further- does SALOME-9.9.0-UB18.04-SRC/salome return on error or does it start ?
Can you also share the output of :
env > UB18.04-env.txt
apt list --installed > UB18.04.txt
and upload these two files such that we can check against our configuration

5

~/Salome$ SALOME-9.9.0-UB18.04-SRC/salome
bash: SALOME-9.9.0-UB18.04-SRC/salome: No such file or directory

6

UB18.04-env.txt (5.5 KB)

7

UB18.04.txt (163.5 KB)

8

thanks for sharing the two files- can you do the following to ensure that things are consistently set:

wget https://files.salome-platform.org/Salome/Salome9.9.0/SALOME-9.9.0-UB18.04-SRC.tar.gz
tar zxf SALOME-9.9.0-UB18.04-SRC.tar.gz
# reset PATH to its default
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/sbin
# launch SALOME
SALOME-9.9.0-UB18.04-SRC/salome
# if it does not start, then  share the error message
# then try the following to check that sat is running as expected.
unset LD_LIBRARY_PATH
# now LD_LIBRARY_PATH should be empty
echo $LD_LIBRARY_PATH
# reset PATH to its default
export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/sbin
# PYTHONPATH
unset PYTHONPATH
cd  SALOME-9.9.0-UB18.04-SRC
./sat/sat config SALOME-9.9.0 --check_system

Let us know if it helps. If not, then we look at the contents of UB18.04 which are missing from your list.

9

~$ SALOME-9.9.0-UB18.04-SRC/salome
SALOME_Session_Server_No_Server: error while loading shared libraries: libgeos_c.so.1: cannot open shared object file: No such file or directory

10 
echo $LD_LIBRARY_PATH

~$

11

~/SALOME-9.9.0-UB18.04-SRC$ ./sat/sat config SALOME-9.9.0 --check_system
create log dir /home/dude/SALOME-9.9.0-UB18.04-SRC/LOGS

Check the system dependencies declared in the application

  • libltdl7 : OK

  • libgomp1 : OK

  • libdc1394-22 : KO (package is not installed!)

  • libffi6 : OK

  • libncurses5 : OK

  • libxcb1 : OK

  • libexif12 : OK

  • libxmu6 : OK

  • libxext6 : OK

  • libfftw3-double3 : OK

  • libice6 : OK

  • libglvnd0 : OK

  • libtiff5 : OK

  • libsm6 : OK

  • libnuma1 : OK

  • libbsd0 : OK

  • libwebp6 : OK

  • libglu1-mesa : OK

  • libxkbcommon-x11-0 : OK

  • libx11-xcb1 : OK

  • libxcb-xfixes0 : OK

  • libgl1 : OK

  • libopenexr22 : OK

  • libxpm4 : OK

  • libgphoto2-6 : OK

  • libsqlite3 : OK

  • libquadmath0 : OK

  • libxi6 : OK

  • libstdc++6 : OK

  • libxrender1 : OK

  • libxau6 : OK

  • libxkbcommon0 : OK

  • libxcb-xkb1 : OK

  • libexpat1 : OK

  • libx11-6 : OK

  • libopenblas-base : KO (package is not installed!)

  • libzstd1 : OK

  • libgfortran4 : OK

  • libglx0 : OK

  • libdrm2 : OK

  • liblzma5 : OK

  • libpcre3 : OK

  • libopengl0 : OK

  • libgcc-7-dev : OK

  • libxt6 : OK

  • zlib1g : OK

  • libraw1394-11 : OK

  • libc6 : OK

  • libxss1 : OK

  • libbz2-1.0 : OK

  • libxcb-glx0 : OK

  • libxft2 : OK

  • libegl1 : OK

  • libtinfo5 : OK

  • libgphoto2-port12 : OK

  • libpng16-16 : OK

  • libudev1 : OK

  • libilmbase12 : OK

  • libusb-1.0-0 : OK

  • libevent-2.1-6 : OK

  • libfontconfig1 : OK

  • libuuid1 : OK

  • libxdmcp6 : OK

  • libjbig0 : OK

  • cython3 : KO (package is not installed!)

  • libxt-dev : OK

  • libjpeg-dev : KO (package is not installed!)

  • libopenmpi-dev : OK

  • libcurl4-openssl-dev : KO (package is not installed!)

  • sed : OK

  • libhwloc-dev : OK

  • automake : KO (package is not installed!)

  • libfftw3-dev : OK

  • gcc : OK

  • libtbb-dev : KO (package is not installed!)

  • cmake : KO (package is not installed!)

  • make : OK

  • g++ : OK

  • libreadline-dev : OK

  • perl : OK

  • libxpm-dev : KO (package is not installed!)

  • flex : OK

  • libgeos-dev : KO (package is not installed!)

  • libssl-dev : KO (package is not installed!)

  • libxft-dev : KO (package is not installed!)

  • libtool : OK

  • libicu-dev : KO (package is not installed!)

  • libxi-dev : KO (package is not installed!)

  • libfontconfig1-dev : KO (package is not installed!)

  • libopenblas-dev : KO (package is not installed!)

  • libxmu-dev : KO (package is not installed!)

  • libgeotiff-dev : KO (package is not installed!)

  • libglu1-mesa-dev : OK

  • libgif-dev : KO (package is not installed!)

  • libxcb-dri2-0-dev : OK

  • libxkbcommon-dev : KO (package is not installed!)

  • libtiff5-dev : KO (package is not installed!)

  • libpng-dev : KO (package is not installed!)

  • libxkbcommon-x11-dev : KO (package is not installed!)

  • bison : KO (package is not installed!)

  • libexpat1-dev : KO (package is not installed!)

  • libsqlite3-dev : KO (package is not installed!)

  • bzip2 : OK

WARNING: Some run time system dependencies are missing!
Please install them with apt before running salome
missing run time dependencies : libdc1394-22 libopenblas-base

WARNING: Some compile time system dependencies are missing!
Please install them with apt before compiling salome
missing compile time dependencies : cython3 libjpeg-dev libcurl4-openssl-dev automake libtbb-dev cmake libxpm-dev libgeos-dev libssl-dev libxft-dev libicu-dev libxi-dev libfontconfig1-dev libopenblas-dev libxmu-dev libgeotiff-dev libgif-dev libxkbcommon-dev libtiff5-dev libpng-dev libxkbcommon-x11-dev bison libexpat1-dev libsqlite3-dev

Thank you for your help

12

try as reported by the SAT tool to install all these packages:

sudo apt update 
sudo apt install  libdc1394-22 libopenblas-base  cython3 libjpeg-dev libcurl4-openssl-dev automake libtbb-dev cmake libxpm-dev libgeos-dev libssl-dev libxft-dev libicu-dev libxi-dev libfontconfig1-dev libopenblas-dev libxmu-dev libgeotiff-dev libgif-dev libxkbcommon-dev libtiff5-dev libpng-dev libxkbcommon-x11-dev bison libexpat1-dev libsqlite3-dev

and restart SALOME as you did (ensure that you reset PATH as described previously)

13

I installed the missing components, and attempted to launch salome as recommended above. However, I still get the same error:

$ SALOME-9.9.0-UB18.04-SRC/salome
SALOME_Session_Server_No_Server: error while loading shared libraries: libgeos_c.so.1: cannot open shared object file: No such file or directory

Thanks

14

assuming you installed apt-file, you can search for the package which provides this shared object file:

sudo apt update
sudo apt-file find libgeos_c.so.1

this command should return:

root@3e3060c8bf18:/# apt-file find libgeos_c.so.1
libgeos-c1v5: /usr/lib/x86_64-linux-gnu/libgeos_c.so.1
libgeos-c1v5: /usr/lib/x86_64-linux-gnu/libgeos_c.so.1.10.2

you need to install libgeos-c1v15.
Proceed in the same manner with other missing shared object files or share with us the remaining issues if any.
HTH

15

I’m still getting errors when I try to launch Salome. Why is that? I thought I installed everything that was missing in one of the steps above?

SALOME-9.9.0-UB18.04-SRC/salome
SALOME_Session_Server_No_Server: error while loading shared libraries: libopenblas.so.0: cannot open shared object file: No such file or directory

16 
root@3e3060c8bf18:/# apt-file find  libopenblas.so.0
libopenblas-base: /usr/lib/x86_64-linux-gnu/libopenblas.so.0

install libopenblas-base

17

I’m finally to the gui. Thank you for your help.