Unsupported major.minor Version 51 but I have Java 1.7 installed?

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crewkid

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Title Unsupported major.minor Version 51 but I have Java 1.7 installed?

Launcher Type Twitch Desktop App

Modpack FTB Horizons III

Modpack version

Have you modified the pack? No

Link to log file http://paste.feed-the-beast.com/view/03c43851

Details of the issue I've spent the last hour on my mac computer, getting the java to show up in terminal when I type "java -version". I finally got it to display 1.7, but I'm still getting the same error message in my Minecraft Launcher window! I've heard the "51"version error is due to an outdated java version, but I've also heard that Java 1.8 doesn't work on FTB. So 1.7 seemed to be the right one..???
 
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