There are many tutorials out there on YouTube that show you how to run FTB on a MAC to fix the crash at launch issue.
In this tutorial I show you away to simplify the task by creating a shell application using Automator to execute the FTB Launch Jar file
Make sure you have Java Run time installed on your computer before you go through the video tutorial.
The code you can make use of is…
java -jar FTB_Launcher.jar
A few easy ways to fix common issues:
- At first run OS X will prompt you to download JDK (Java Development Kit), do not download Java Development Kit unless you are a Java Developer. There is no need to install JDK for FTB to work. Instead, head over to http://java.com/getjava, click on the Free Java Download button and then click on Agree and Start Free Download. Once downloaded, install Java.
- Download and install the following Java Update for Java 6 from Apple http://support.apple.com/kb/DL1572?
- If you experience WorkFlow errors, do not copy and paste the code provided in the video description. Instead, type the code manually into Automator as shown above. Copy/Paste sometimes copies invalid characters.
- For invalid login credentials, try either of the following: Create a new profile thats got a name different from your username and in place of the username, input your e-mail address (the e-mail address you used to sign up for Minecraft).