I have a problem when i change my java version from 1.8 to 1.7. The problem is my smartgit can't run and open. So, how to fix it? It's so easy. Just follow this step!! 1. Check your java version $ java -version. In terminal that it show if the version of java is 1.7. So we need to change it because smartgit only run in java 1.8. 2. Run in terminal $ nano ~/.smartgit/smartgit.vmoptions 3. And then add this jre=/usr/lib/jvm/java-1.8.0-openjdk-amd64/ 4. Save the file and try open your smartgit. Tadaaaa...!!! And its work :) Thanks for reading! Give like if its work and usefull.