ADB logcat fails to clear the main log

Question

When I connect to a device or an emulator using adb, I can clear logcat using adb logcat -c. The issue I am facing is that I often get the following message:

failed to clear the 'main' log

AFAIK, 'main' is a non-rooted buffer which means that I should be able to clear it without root. What can then be the reason for this message?

Answer 1

You might have your Android Studio opened, please close it and run again , it should able to clear the logs.

Answer 2

use

adb logcat -b all -c 

it will clear all buffers. sometime adb logcat -c will not work because of many process using it like android studio.