conda uninstall mmcv 出错

mmcv装的版本不对，需要卸载重新安装 使用conda uninstall mmcv报错 `(research) [email protected]:/home/mmdetection-master/tools# conda uninstall mmcv
Collecting package metadata (repodata.json): done
Solving environment: failed

PackagesNotFoundError: The following packages are missing from the target environment:

• mmcv`

后来查看资料后发现 我安装的时候是用pip 安装 卸载的时候也需要pip uninstall mmcv 我真是小白，真的白啊！！！