Dear, so I'm downloading the new 1.8.6 BuildTools, well, trying too. Here's what I've got: start.sh - code within Code (Text): java -jar BuildTools.jar When I click on the start.bat it will open then close as soon as possible. The BuildTools.log is: Code (Text): You must run this jar through bash (msysgit) So I right clicked on the start.bat, then when to git bash, then it opened the cmd prompt. I then wrote: Code (Text): java -jar BuildTools.jar 'Command not found'... Any help would be appreciated, I've read through the wiki's and threads, but haven't found a solution. Kind Regards, Inkzzz.