我已经使用conda install xeus-cling -c conda-forge来设置c ++环境。
输入jupyter kernelspec list没关系
Available kernels:
c /home/UserName/.local/share/jupyter/kernels/c
python3 /home/UserName/anaconda3/envs/mixed/share/jupyter/kernels/python3
xcpp11 /home/UserName/anaconda3/envs/mixed/share/jupyter/kernels/xcpp11
xcpp14 /home/UserName/anaconda3/envs/mixed/share/jupyter/kernels/xcpp14
xcpp17 /home/UserName/anaconda3/envs/mixed/share/jupyter/kernels/xcpp17
但是，在打开jupyter笔记本并使用C++17创建helloworld.ipynb之后，无法加载环境。这是输出：
[I 14:33:08.063 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports
/home/littleblack/anaconda3/envs/mixed/bin/xcpp: /home/littleblack/anaconda3/envs/mixed/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /home/littleblack/anaconda3/envs/mixed/bin/../lib/libxeus-cling.so.0)
/home/littleblack/anaconda3/envs/mixed/bin/xcpp: /home/littleblack/anaconda3/envs/mixed/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /home/littleblack/anaconda3/envs/mixed/bin/../lib/libxeus.so.1)
[I 14:33:11.073 NotebookApp] KernelRestarter: restarting kernel (2/5), new random ports
/home/littleblack/anaconda3/envs/mixed/bin/xcpp: /home/littleblack/anaconda3/envs/mixed/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /home/littleblack/anaconda3/envs/mixed/bin/../lib/libxeus-cling.so.0)
/home/littleblack/anaconda3/envs/mixed/bin/xcpp: /home/littleblack/anaconda3/envs/mixed/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /home/littleblack/anaconda3/envs/mixed/bin/../lib/libxeus.so.1)
[I 14:33:14.083 NotebookApp] KernelRestarter: restarting kernel (3/5), new random ports
/home/littleblack/anaconda3/envs/mixed/bin/xcpp: /home/littleblack/anaconda3/envs/mixed/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /home/littleblack/anaconda3/envs/mixed/bin/../lib/libxeus-cling.so.0)
/home/littleblack/anaconda3/envs/mixed/bin/xcpp: /home/littleblack/anaconda3/envs/mixed/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /home/littleblack/anaconda3/envs/mixed/bin/../lib/libxeus.so.1)
[I 14:33:17.095 NotebookApp] KernelRestarter: restarting kernel (4/5), new random ports
/home/littleblack/anaconda3/envs/mixed/bin/xcpp: /home/littleblack/anaconda3/envs/mixed/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /home/littleblack/anaconda3/envs/mixed/bin/../lib/libxeus-cling.so.0)
/home/littleblack/anaconda3/envs/mixed/bin/xcpp: /home/littleblack/anaconda3/envs/mixed/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /home/littleblack/anaconda3/envs/mixed/bin/../lib/libxeus.so.1)
[W 14:33:20.105 NotebookApp] KernelRestarter: restart failed
[W 14:33:20.106 NotebookApp] Kernel 985da6a1-a8a7-4797-b423-ebd2f5136aca died, removing from map.
[W 14:34:05.178 NotebookApp] Timeout waiting for kernel_info reply from 985da6a1-a8a7-4797-b423-ebd2f5136aca
我尝试安装gcc，更新conda packges，但它保持不变。 我正在使用Ubuntu 20.04 LTS。