当我试图安装python3-dev使用sudo apt-get install python3-dev我得到了以下信息
python3-dev : Depends: libpython3-dev (= 3.4.0-0ubuntu2) but it is not going to be installed
Depends: python3.4-dev (>= 3.4.0-0~) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
所以我尝试安装依赖项libpython3-dev然后我收到了这条消息
The following packages have unmet dependencies:
libpython3.4-dev : Depends: libpython3.4-stdlib (= 3.4.0-2ubuntu1.1) but 3.4.3-1ubuntu1~14.04.1 is to be installed
Depends: libpython3.4 (= 3.4.0-2ubuntu1.1) but 3.4.3-1ubuntu1~14.04.1 is to be installed
E: Unable to correct problems, …