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

Question

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

User · Answer

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

User · Answer

I tried the solutions given here while working on an application that used Bluetooth Low Energy BLE   I tried    Clean Build Disabled Instant Run Invalidate Caches   Restart   all of these failed   What I did was debug the points where I thought I was getting the warning  I still got the warning but the application was working fine  You can disregard the warning

User · Answer

My app is compiled on API LEVEL 29  but debugging on real device on API LEVEL 28 I got the warning source code does not match the bytecode in AndroidStudio I fixed it thought these steps    Go to Preferences Instant Run  uncheck the instant run Go to Build Clean Build Re-RUN the app   Now  the debug runs normal

User · Answer

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 - gt  Clean Disable Instant Run  in Settings - gt  Build  Execution  Deployment

User · Answer

So I created an account just so I could help fix this problem that is plaguing a lot of people and where the fixes above aren t working  If you get this error and nothing here helps  Try clicking the  quot Resume program play button quot  until the program finishes past the error  Then click in the console tab next to debug and read the red text  I was getting that source code error even though my issue was trying to insert a value into a null Array  Step 1 Click the resume button Step 2 Click the console tab and read the red text

User · Answer

Go to Project Settings   Artifacts  Select the artifact which has the problem  There is an option  Include in project build   This needs to be checked enabled   For older versions of IntelliJ this option is  Make on build

User · Answer

Probably this error message can have more than one cause  my case was not like the one from the OP  in my case this was due to a 3rd party library that required additional libraries   For example  you manually add X jar to your LIB  but this X jar requires Z jar to work   It took me sometime to figure out  the message was not helping at all  I had to debug the app until I reached the crashing class  and in that class make sure that all imports were satisfied    Particualry  I added MercadoLibre-0 3 4 jar  which required commons-httpclient jar   Hope this helps

User · Answer

I tried all the solution given here and none of them worked for me  In version 2019 1 3 I just clean  amp  rebuild artifact and it worked  first do Build - gt  Build Artifacts    - gt   lt select your artifact gt  - gt  Clean then click Build or Rebuild from same place

User · Answer

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

User · Answer

Here is my solution  If you got more than one library version  this may help   set a breakpoint on the lib source code let the code run to the breakpoint you will got these tips    click the arrow icon  you will get this   double click to select the correct lib  normally the highest version of the lib is correct    I have clicked the  quot disable quot  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

User · Answer

This is the steps that worked for me  For both Mac and Windows     Click on  File  Click on  Invalidate Caches   Restart      Choose   Invalidate and Restart  Wait for 20 minutes

User · Answer

This can also happen in case you have enabled ProGuard  In buildTypes set minifyEnabled false  shrinkResources false  useProguard false

User · Answer

Android Studio takes source version equal to Target Version in your application  Compilation performed with source version equal to above mentioned Compile Version  So  take care that in your project Compile Version    Target Version  adjust module s build gradle file

User · Answer

You can created AVD  select API Level equal your tagetApi andr compileApi  it works for me

User · Answer

I had the same issue and found a solution  If you have a line flagged in red  it will give you this error  but if you un-flag all of the lines it will work normally   by flagged I mean when you click on the left side where the line numbers are and it highlights the line  If that is not clear here are pictures  go from  flagged line to  not flagged line

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

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