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debugging – Cannot debug android app in Intellij: "Warning: debug info can be unavailable."

Posted by: admin April 23, 2020 Leave a comment


I am trying to debug an app with Intellij 13.0 on Windows 7.
Whenever I start debugging I get the following warning:

Warning: debug info can be unavailable. Please close other application using ADB: Monitor, DDMS, Eclipse”

I have tested it on a device and in the emulator.
The only thing I have open is Intellij. I tried also with closing adb before I start debugging, but nothing changed.

best regards

[EDIT] I solved it, by updating my android SDK build tools to 18.1.1.

How to&Answers:

For me this situation occured when device was connected via usb and adb tcpip was enabled (ADB in Wi-Fi mode).

Just run command adb usb with connected device and try to debug again.


I used adb kill-server in the console to get the Logcat to appear. Running Android Studio 1.02.


Turn the USB Debugging on Device in Developer Options to off.
And then switch it back on.
This solved the issue in my case.


One more thing which fixed my case was clearing all existing breakpoints. And then trying to debug again.


For those who are using Android-Studio: check your gradle file and product flavours and be sure that “debuggable” attribute in manifest is NOT set to false.


First make sure you close any application use ADB , DDMS

like if you open Eclipse with android studio

Second restart your ADB from terminal

adb kill-server
adb start-server

if you cannt find terminal use this image to guide you

enter image description here

if this doesn’t work with you close android studio and open it again

the cause of error , many application share ADB this why you cant start debugging


Had similar problem in Android Studio (0.5.1) with SDK 18.0.1

Warning: debug info can be unavailable. Please close other application using ADB: Monitor, DDMS, Eclipse

As you suggested updating the SDK worked. Now running on 19.0 and the problem got resolved.


The same issues occured with me all of a sudden while debuging an app on my samsung galaxy S6

This is what worked for me :
closed android studio
killed adb , using adb kill-server
removed all of my previous breakpoints(debug points)
Restarted android studio and my phone
Restaterted Mac
did a debug without any breakpoint.
Then again did debug by putting the breakpoints again in my code, Eureka it worked. Luckily it burned only half hour of mine.


A pretty straight forward solution is running the following commands in the command Terminal of Android Studio :

adb kill-server
adb start-server

and then try debugging again. It should be working now.


You can restart ADB in windows without writing any commands.

Just open Task Manager

Sort the list by name

Find process named “adb”
enter image description here
Right click on it and then select “End Task”

Next time you run any app the adb will start with a new instance.


This is a problem of ADB connections as sometimes ADB cache a dead connection on your real/virtual device and due to which the port is busy and u cannot connect to it.

The simplest solution to this is RESTART your ANDROID phone that’s it.


Are you using adb through WiFi? That might cause debugging issues.
If so connect your mobile to your pc thru usb and debug again that should fix it.


This happened to me and the thing I did was to set


in <application> tag…like:

    <application android:allowBackup="true"

This fixed the problem with later SDKs.