shmemBase_attach failed when connecting to Android device

Question

I\'m trying to hook up jdb on my computer to a process (any process really) on my Android device, but it doesn\'t work at all.

So the commands I used are straight of

Answer 1

Try quitting Android Studio.

Its ADB is running even when your project is not. Here is an example where I quit Android Studio, ran ADB, launched my app within the device, then ran ADB again to see the new process id, forwarded the port and finally attached JDB:

$ adb -d jdwp
* daemon not running. starting it now at tcp:5037 *
* daemon started successfully *
28462
^C
$ adb -d jdwp
28462
1939
^C
$ adb -d forward tcp:7777 jdwp:1939
$ jdb -attach localhost:7777 -sourcepath ./src
Set uncaught java.lang.Throwable
Set deferred uncaught java.lang.Throwable
Initializing jdb ...
> 

You can also turn ADB on and off within Android Studio:

Android Studio->Tools->Android->Enable ADB Integration

When ADB integration is disabled, you can run ADB from the console as usual. You can also control and background ADB daemons with:

adb kill-server
adb start-server

I wasted a couple of hours on this, so it really needs better documentation. Also I would like to know how to run both the Android Studio debugger and JDB at the same time so that I can profile all method calls while stepping through the debugger (because the built-in Android Studio monitor tracing doesn't show consecutive method calls with arguments):

http://mybrainoncode.com/blog/2013/11/03/debugging-android-with-jdb/

https://teaspoon-consulting.com/articles/tracing-java-method-calls.html