I keep trying to install 1.7.10 to use modpacks like shadowcraft and trollcraft, but it won't install. I get the same error message every time of "The java .jar file could not be installed. Check the console for possible error messages." I attached the fml-client-latest.log, and I was wondering if anybody could help me work this out?
fml-client-latest.log.logfml-client-latest.log.log
EDIT: The file above won't load, and I couldn't attach it down below, so if anyone has any tips that would be great?