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Unable to open Arduino software

Posted: Sat Dec 15, 2018 5:55 pm
by Nightify
When I went downgraded my macbook 2011 to macOS El Capitan my Arduino will not open anymore. I had my macbook at High Sierra but I was having many troubles with that so thats why I can't upgrade back to Sierra and High Sierra.

Here is the error message:
https://pastebin.com/ZSjeHGzQ