conda使用直接报错：
Error while loading conda entry point: conda-libmamba-solver (libarchive.so.19: cannot open shared object file: No such file or directory)
CondaValueError: You have chosen a non-default solver backend (libmamba) but it was not recognized. Choose one of: classic如果你的报错信息也有 CondaValueError .... Choose one of: classic 这一行，那么可以通过以下在Linux shell中输入运行以下命令解决conda无法使用的问题：
conda config --set solver classic