How to resolve when Logcats stops working in Android Studio?

Question

Logcat has stopped working for me again in Android Studio. Last time it happened I had to reinstall the IDE, and I want to avoid it again.

What I did for this to happen was changing...

Log.d("WRONG", "TEST");

to

Log.d("LOG", TEST");

and then changed the tag back to "WRONG" again. Now Logcat wont show any of my debug messages even if I remove WRONG from the filter when the app is running on my phone. The emulator still provides debug messages.

I already tried:

• Checked if Android Device Monitor is active.
• Restarting Logcat.
• Change from Verbose to Debug and back to Verbose.
• Unplugging the phone.
• Restarting Android Studio.
• Invalidate cache / Restart (in File menu).
• Uninstalling the app.
• Restarting the computer.
• All of the above at the same time.
• Changing phone.

• Switching USB cable.

• Opening Android Studio Manager. It bugged out and the log told me »java.io.IOException: The folder "C:\Users\Logga%20in.android\monitor-workspace.metadata" is read-only.«

[edit: tried even more solutions]

• Using the terminal in Android Studio. Going to android sdk\platform-tools folder and typing adb kill-server followed by adb start-server.
• opening Dalvik Debug Monitor through Command and checking the log there.
• adding android:debuggable="true" to the manifest (under the application tag).

I'm using Android Studio 2.1 but the same thing happened when I was using 2.0b.

Answer 1

In my case in Android 2.2, for some reason, Firebase was selected by default in the dropdown box marked above. So logs didn't drop. I just needed to change it to No Filters

Hope this helps someone.