In all versions of Minecraft with Forge (I tried with 1.7.10, 1.7.2 and 1.6.4) I am perfectly capable of launching Vanilla Minecraft from the launcher, when I attempt to launch it with Forge, the process simply stops, no crash, or anything of the sort. The launcher closes itself, there is no error message, it simply stops the process. The launcher doesn't reopen. How do I get it to run properly?
closed as unclear what you're asking by MrLemon, TZHX, Frank♦, Studoku, Shadow Z. Mar 27 '15 at 16:26
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
Down/upgrade your java to 1.7. Forge doesn't seem to support java 1.8 (yet)...
The problem is that a new load of minecraft will still load the 8.1 version of Java it downloads into the 'program files(x86)\minecraft\Java' directory. Forge defaults to this. I had the same problem and deleted and reloaded everything. Same problem. Forge dies after you click "play"
What you need to do is under edit profile. click use other Java settings Advanced and give it the path to the Java 7 bin file. Mine was "c:\Program Files(x86)\Java\jre7\bin\javaw.exe"
Worked first time after that and no problems since.