The fix for this is to install libstdc++5and then reinstall Lightning. Close thunderbird and then in a terminal:
sudo apt-get remove lightning
sudo apt-get install libstdc++5
sudo apt-get install lightning
Reg. Linux User #479288
The fix for this is to install libstdc++5and then reinstall Lightning. Close thunderbird and then in a terminal:
sudo apt-get remove lightning
sudo apt-get install libstdc++5
sudo apt-get install lightning
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