Not Able To Debug App In Android Studio

Question

I am making an app in Android Studio, now trying to debug it through adb. When I click on the word Android and the logo on the bottom bar, logcat comes up and recognizes my device. Then I see this:

What do I need to do to my app to make it "debuggable"?

FYI was developing this app in Eclipse before and adb worked fine.

Solution 1

There is a Debug icon on the toolbar. It looks like a little "bug" and is located right next to the Run icon (which looks like a play button). Try launching the application with that.

Edit: The following is deprecated when using Android Studio with Gradle.

There is also a debug flag in the AndroidManifest.xml file. It is located under the application tag, and should be set to "true", as follows:

<application android:debuggable="true">
</application>

Solution 2

I solved this issue after doing the following steps:

Go to Tools==>android==>Disable ADB integration and enable it again.

After that, unplug USB from device and plug in again.

Finally press shift + F9

Solution 3

Another thing to be careful of (I did this so I know, duh). Be sure not to enable Proguard for debug!

Solution 4

I also randomly had this problem even after debugging many times in Android Studio. One day the debugger just wouldn't attach. I just had to quit Android Studio and reopen it and the debugger started working again.

Solution 5

    <application android:debuggable="true">
</application>

This no longer works! No need to use debuggable="true" in manifest.

Instead, you should set the Build Variants to "debug"

In Android Studio, go to BUILD -> Select Build Variant

Now try debugging. Thanks

View more solutions

Comments

[Paul]

Did you find a solution?

[Ahmad Behzadi]

Uninstalling app from device and run it again from Android studio solved my problem

[castle bai]

I had a problem today, breakpoints cannot stop the program. And It was because of setting in build.gradle. I set debug build type with minifyEnabled is true, remove this and breakpoint worked.

[Muahmmad Tayyib]

have a look at my answer here. that might solve the problem

[Ari R. Fikri]

Can we step one line at a time, just like in eclipse ? if can, how to do that ?

[free3dom]

Sure you can. Once you hit a breakpoint the debug window is displayed, the toolbar at the top contains the various step commands. You can also configure the various debug keyboard shortcuts from File -> Settings -> Keymap - they are located under Main menu -> Run. See this for more info.

[Soundararajan]

The latest version of android studio doesn't mandate you to set the android:debuggable, infact it shows an squiggle which suggests to set it in the configuration rather than in the manifest. This helps in avoiding accidently publishing an app with debug information.

[free3dom]

Thanks @Soundararajan for bringing that to my attention. I will update the answer to reflect that.

[Rui Santos]

This is what helped me. Suddenly the debug stopped working, after this worked again.

[Mathijs Segers]

Stil working as of today, tried restarting and everything.

[Admin]

Not work 2015, build.gradle put buildTypes { debug { debuggable true

[Rachael]

I just needed to close and reopen android studio for that project instance to make the bug work :/

[Daniel Wood]

@delive Is right. I couldn't use my breakpoints until I added that to my build.gradle.

[Harmen]

Yesterday, while nothing else helped, a reboot did the trick.

[Mahendra Chhimwal]

This work for me. Even adb kill-server and adb start-server commands did not,but it does

[Jules]

horrible workaround but the only thing working for me right now, THANKS!!!

[clever_trevor]

Note for the last part: Shift + F9 is the shortcut to run Debug on Windows. On Mac, it is Control + D.

[Jason Bowers]

Worked for me even though I did not have a custom "android:process" in my Manifest file.

[visc]

This has tripped me up a number of times, even in other IDEs. I believe the ability to debug release is configurable in most IDEs and sometimes advised if you want to attach the debugger to released apps.

[Janardhan R]

thanks and had to make minifyEnabled false and shrinkResources false

[NoWar]

In which console we have to start it?

[jonathan3087]

Disable and re- Enable ADB Integration helped me on Android Studio 3.0.1

[VictorB]

Just what I was looking for. Previously, I could get this done with a simple adb reconnect command, but it doesn't do this anymore in AS 3.1 (maybe I'm doing something wrong, or not enough?

[VictorB]

Btw, this solution worked for me without closing AS, or the terminal session.

[James Watkins]

There is no such menu item called "Tools==>android" in Android Studio version 3.1.3 and I cannot find this option anywhere

[gmartinsnull]

this was the solution for me. Thanks

[Kevin Amiranoff]

In android 3.X I posted an answer that worked for me

[Haider Ali]

Run this command in the android studio terminal or navigate to your project from external terminal

[nibbana]

Using the debug app button as suggested solved the problem.

[Andy Romero]

it is work for my. I put the in the manifest <application android:debuggable="true"> </application> and debug perfect. Thanks

[Pete Alvin]

The Build menu doesn't have a "Select Build Variant" option.

[Pete Alvin]

That debug button is disabled/greyed. How do you get it to be clickable?

[spartygw]

No "adb" options anywhere in the menus for Android Studio 4

[Buckstabue]

I faced with this issue in android studio 4.1 and your solution helped me. Thanks

[Pratheesh]

Use this option to restart ADB in Android Studio 4: Tools -> "Troubleshoot Device Connection" Here tap "Next" button. Finally ADB restart option is there in the 4th step

[dicarlomagnus]

Avoid hardcoding the debug mode; leaving it out allows debug and release builds to automatically assign one

[Acauã Pitta]

don't work. what works was restart adb server: stackoverflow.com/a/60805797/4628993