ADB in android studio keeps showing same error mes

Question

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/jorandob/Library/Android/sdk/platform-tools/adb start-server' failed -- run manually if necessary

If I try to start ADB manually it just doesn't show anything.

I tried so far:

• Restart server
• Reinstall ADB
• Reinstall Android Studio

I'm on mac os X 10.11.6 and not using any special emulator. If its helpful information, I'm using ionic.

Terminal ADB:

Jorans-iMac:~ jorandob$ adb version Android Debug Bridge version 1.0.36 Revision 0e9850346394-android

Answer 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.