我正在尝试使用网页更新电力价格协议。
添加他们的 PPA 并更新后，我尝试：
sudo apt-get install oracle-java7-installer
它给了我一个错误
Oracle JDK 7 is NOT installed.
dpkg: error processing oracle-java7-installer (--configure): subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing: oracle-java7-installer E: Sub-process /usr/bin/dpkg returned an error code (1)