ROS无法安装的解决方案

有时候安装ROS会出现如下报错：

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The following packages have unmet dependencies:
 ros-noetic-desktop-full : Depends: ros-noetic-desktop but it is not going to be installed
                           Depends: ros-noetic-perception but it is not going to be installed
                           Depends: ros-noetic-simulators but it is not going to be installed
                           Depends: ros-noetic-urdf-sim-tutorial but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

一些文章提出解决方案是运行如下命令：

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sudo aptitude install ros-noetic-desktop-full

然后根据命令提示进行冲突排解，但这未必能够成功安装。

今天安装发现，这可能和build-essential依赖的某些库冲突，所以需要卸载build-essential，并在装完ROS后重新安装。

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sudo apt remove build-essential