我一直在尝试安装，nvidia-cuda-toolkit但sudo apt install nvidia-cuda-toolkit显示以下错误：
The following packages have unmet dependencies: nvidia-cuda-toolkit :
Depends: nvidia-cuda-dev (= 10.1.243-3) but it is not going to be
installed E: Unable to correct problems, you have held broken
packages.
Running `sudo apt install nvidia-cuda-dev` yields:
The following packages have unmet dependencies: nvidia-cuda-dev :
Depends: libcublas10 (= 10.1.243-3) but 10.2.2.214-1 is to be
installed
Recommends: libvdpau-dev but it is not going to be installed
Recommends: libnvcuvid1 but it is not installable E: …