翻墙看个人需要 早先一直在 Chrome 和 Firefox 上用免费的插件 SetupVPN 翻墙，大多时候速度还可以。况且 Github 很多时候不用翻墙就能上，有的用，我也就懒得花时间精力和金钱再捣

With my Ubuntu installation, I got error “java.lang.noclassdeffounderror: javafx/application/application” running JabRef-4.3.1.jar. 1 java -jar JabRef-4.3.1.jar JabRef-4.3.1.jar depends on Java 8 Solution was found in this Issue. JabRef-4.3.1.jar requires Java 8, but the default-jdk in Ubuntu 18.04 is openjdk-11-jdk (Java 11), under which JabRef does not work. So first I have to remove openjfx of new version with “sudo apt purge openjfx”, then install the required version of openjfx.

在 cmake-gui 中 configure 时出现错误提示找不到 CUDA_cublas_device_LIBRARY：这时需要更新 cmake 版本，首先完全卸载旧版本的 cmake，再安装