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I have an ubuntu 19 and I am trying to change the version of my gcc to 4.8.5 from 7.8 ( I suppose ). After I tried using this command 

link in ${@:1}; do sudo ln -s -f "/usr/bin/${link}-${0}" "/usr/bin/${link}"; done' 4.8

which is from this link

How to choose the default gcc and g++ version?

after I tried to use gcc -v or gcc --version or even trying to compile anything with gcc I get the error 

  Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 28, in <module>
    from CommandNotFound import CommandNotFound
  File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 19, in <module>
    from CommandNotFound.db.db import SqliteDatabase
  File "/usr/lib/python3/dist-packages/CommandNotFound/db/db.py", line 5, in <module>
    import apt_pkg
ImportError: /opt/Xilinx/14.7/ISE_DS/common/lib/lin64/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /usr/lib/python3/dist-packages/apt_pkg.cpython-36m-x86_64-linux-gnu.so)
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
    from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>
    from apport.report import Report
  File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module>
    import apport.fileutils
  File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>
    from apport.packaging_impl import impl as packaging
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 24, in <module>
    import apt
  File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module>
    import apt_pkg
ImportError: /opt/Xilinx/14.7/ISE_DS/common/lib/lin64/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /usr/lib/python3/dist-packages/apt_pkg.cpython-36m-x86_64-linux-gnu.so)

Original exception was:
Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 28, in <module>
    from CommandNotFound import CommandNotFound
  File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 19, in <module>
    from CommandNotFound.db.db import SqliteDatabase
  File "/usr/lib/python3/dist-packages/CommandNotFound/db/db.py", line 5, in <module>
    import apt_pkg
ImportError: /opt/Xilinx/14.7/ISE_DS/common/lib/lin64/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /usr/lib/python3/dist-packages/apt_pkg.cpython-36m-x86_64-linux-gnu.so)

what should I do to solve this and get gcc 4.8 as new version

steeldriver
  • 142,475
Batuhan Tosyalı
  • 1

1 Answers1

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I would recommend you do a fresh install leaving only the gcc version that you need/want. Uninstall all g++ and gcc and do a fresh install. Purge them if necessary.

Mark
  • 184