Fwd: Sage Crash Report

[Nicolas De Ro Miralles]

I have recently downloaded SageMath for educational purposes. However, I faced problems while installing the software.

I use Ubuntu 15.04 and when building binaries from the terminal the installation seems to be almost completed when a message appears (in copy you will find the crash report) :

Oops, Sage crashed. We do our best to make it stable, but...

A crash report was automatically generated with the following information:
  - A verbatim copy of the crash traceback.
  - A copy of your input history during this session.
  - Data on your current Sage configuration.

It was left in the file named:
    '/home/nicolas/.sage/ipython-5.0.0/Sage_crash_report.txt'
If you can email this file to the developers, the information in it will help
them in understanding and correcting the problem.

You can mail it to: sage-support at sage-s...@googlegroups.com
with the subject 'Sage Crash Report'.

If you want to do it now, the following command will work (under Unix):
mail -s 'Sage Crash Report' sage-s...@googlegroups.com < /home/nicolas/.sage/ipython-5.0.0/Sage_crash_report.txt

To ensure accurate tracking of this issue, please file a report about it at:
http://trac.sagemath.org

Hit <Enter> to quit (your terminal may close):

Thanking you in advance for your help.

[Dima Pasechnik]

At the bottom of your log, one sees:

ImportError: libgfortran.so.3: cannot open shared object file: No such file or directory

Please install libgfortran (e.g. by installing gfortran), it will fix the problem.

[Nicolas Dero Miralles]

Thanks Dima for your help.

I successfully installed libgfortan however when compiling SageMath a new error appears in the crash report :
ImportError: /usr/lib/i386-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by /home/nicolas/SageMath/local/lib/libntl.so.33)

Could you help me ?