Error Opening Trace File: No Such File or Directory (2)

E/Trace﹕ error opening trace file: No such file or directory (2)

Found it! Bug in Google Analytics SDK causes an ANR when using XML for GA global configuration. AKA you can't use this Meta tag:

<!-- Google Analytics Version v4 needs this value for easy tracking -->
<meta-data
    android:name="com.google.android.gms.analytics.globalConfigResource"
    android:resource="@xml/global_tracker" />

See this amazing answer for more:
https://stackoverflow.com/a/27542483/740474

Android E/Trace(627): error opening trace file: No such file or directory (2)

The error message comes from the systrace code. It indicates that your device doesn't support systrace tracing. You can ignore it.

Source

What cause the error opening trace file: No such file or directory?

I managed to figured out what was the problem on my code and fixed it and now I can be able to recorder the incoming and outgoing calls. The problem was under my RecordSercive class on the recorder part

> //________Test with the Default outputFormat and default
> Encoder________
> 
>           /*  recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);
>               recorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
>               recorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);*/
>               
>               //_______End for the Test with the Default outputFortmat and default Encoder________

That is where I got the Message that says unfortunately the you cant record on this device

So I changed my code to this:

> recorder = new MediaRecorder();               
>               recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_DOWNLINK + MediaRecorder.AudioSource.VOICE_UPLINK);//test using the addition sign
> for both DOWNLINK + UPLINK
>               recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
>               recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);                
>               myFileName = getFilename();
>               recorder.setOutputFile(myFileName);

Which worked fine for me, but the sound quality is is a problem, of which I will just have to increase the volume using the

> volume = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

but under the LogCat the on Eclipse when I debug my app, I still get the error opening trace file: No such file or directory (2). Of which I think it might be caused by other reasons of which I'm currently investigating like (Chris Stratton) mentioned.

Android - error opening trace file: No such file or directory(2)

I guess you need the ACCESS_NETWORK_STATE in your manifest.

Android runtime error: error opening trace file: No such file or directory (2)

Do not use System.exit(0)

Quoting Romain Guy from https://groups.google.com/forum/#!topic/android-developers/G_D3pKnGLt0

The user doesn't, the system handles this automatically. That's
what the activity lifecycle (especially onPause/onStop/onDestroy) is
for. No matter what you do, do not put a "quit" or "exit"
application. It is useless with Android's application model. This is also
contrary to how core applications work.

There is detailed answer about the same @

Is quitting an application frowned upon?

You can also read related threads @

https://groups.google.com/forum/#!topic/android-developers/G_D3pKnGLt0

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