'Source code does not match the bytecode' when debugging on a device

I have an app which I am compiling against API level 21:

and then debug it on a real device with API level 23:

The problem is when I try debugging through the Android OS's own classes, I get 'Source code does not match the bytecode'. Why is this happening? The test device the app is running on is API level 23, and the source file being debugged is level 23 as well.

I am really confused. Can anyone explain why I am seeing this message and how I can fix it?

Solution 1:

There's an open issue for this in Google's IssueTracker.

The potential solutions given in the issue (as of the date of this post) are:

• Click Build -> Clean
• Disable Instant Run, in Settings -> Build, Execution, Deployment

Solution 2:

Here is my solution:

If you got more than one library version, this may help.

1. set a breakpoint on the lib source code
2. let the code run to the breakpoint
3. you will got these tips

4. click the arrow icon

5. you will get this

   

6. double click to select the correct lib (normally the highest version of the lib is correct)

I have clicked the "disable" button by mistake, you can enable it in the debugger setting

If you do not have the tips in the step 3, maybe you can check whether you have checked the setting options

Solution 3:

You should use an Android emulator with the same api level as the compileSdkVersion. In your case you should use Android emulator with api level 21.

Solution 4:

If you use Gradle, it is probably a problem with Gradle caches. (Reference). Alas, even if you run

gradle --refresh-dependencies

, it is not refreshing really all dependencies. Some rubbish remains. (Reference).

So, the most sure (but drastic and long) variant is to clear all inside from the [user]/.gradle/caches. Or to find your problem project there and clear only its caches.