Adb In Android Studio Keeps Showing Same Error Message And Does Not Start

My ADB install does not work, it does not start or show any info. I keep getting the same error message over and over again: 18:14 Unable to run 'adb': null 18:14 '/Users/jor

Solution 1:

I finally resolved my issue, it occurs if you run java and ADB at the same time.

to fix it stop all java processes in the activity monitor.