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Questions tagged [logcat]

Logcat is the command to view and filter information from the Android logging system, but more often the name is used as a synonym for the Android logging system itself.

Logcat is the command to view and filter information from the Android logging system, but more often the name is used as a synonym for the Android logging system itself.

Logging information from Logcat is vital for diagnosing problems and debugging Android apps.

To retrieve information from logcat manually the Android Debug Bridge (ADB) command line tool is used. Alternatively Eclipse with Android Development Tools (ADT) plug-in provides a logcat view in most perspectives, automatically retrieving logging information.

Detailed information on the logcat command is available at the Android Developers documentation.

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ERROR/AndroidRuntime(219): java.lang.RuntimeException: Unable to start activity ComponentInfo{elf.app/elf.app.RoomInfoActivity}: java.lang.NullP

LogCat: 05-18 13:35:31.954: INFO/ActivityManager(51): Starting activity: Intent { cmp=elf.app/.RoomInfoActivity (has extras) } 05-18 13:35:32.535: WARN/ActivityManager(51): Activity pause timeout for HistoryRecord{44e19170…
Petrus K.
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How to read logcat

I've just recently started android development, and part of my code is redirecting me to the main activity rather than the activity it is meant to, after looking at the logcat, I've tried to find out what it means to no avail, is there anyone that…
shannoncode
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How do I filter out an error spamming in adb logcat in command prompt?

When I test my VR video playing app, there is always an error spamming when I play a video: OPENGL NATIVE PLUG-IN ERROR: GL_INVALID_ENUM: enum argument out of range I can't find anything to fix this error but it does not affect how my app works.…
Sunny Leung
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Android, get all events of other applications in logcat?

How can I get logcat of all events of other applications in a rooted android phone? Actually I want to get if an activity is resumed, paused or destroyed in another application? I know there's not any direct method to do this,so I am trying to get…
Shahzad Akram
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Possible causes of massive amount of logs in logcat? (Background concurrent copying GC freed)

What are the possible causes that could cause MASSIVE amounts of logs in logcat between UI automated tests on an android app? When I say massive, I mean thousand of logs like: 12-11 18:32:04.071 6857 6868 I zygote : Background concurrent copying GC…
Radu B.
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Android Release APK Error while updating property 'focusable' of a view managed by: RNSVGSvgView

I build an app using react-native, it works fine, but when I build a release APK file and I installed it in a real device, I got this error AndroidRuntime: com.facebook.react.bridge.JSApplicationIllegalArgumentException: Error while updating…
Vito Lipari
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Android Studio not showing logcat info while running the emulator

As the title says, Android Studio doesn't show me the logcat info while using the emulator. If I connect my device directly, it runs with no problem. What could be the cause? I'm using Android Studio 3.5.3. Tried everything, Invalidate Cache/Restart…
AndrewHoover898
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No debuggable process: Android studio 3.4.1

I'm more of a newbie into the world of programming but my journey has been a good one with the knowledge I have gathered thus far. However, I'm experiencing quite a problem that no one seems to have a solution to (considering I have been browsing…
Shale Definit Within Mofokeng
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query did not work as sudden android studio jtds

I'm using jtds style to connect and do update and insert in my MSSQL Server. Everything works just fine but suddenly my program did not read the query anymore and thus show the error messages. From the logCat, there aren't error in my coding, but…
tiqa
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Android sqlite database no such column when update query

im inserting some field to sqlite and inserting works fine while updating the same field the values are retrieving to edittext but not updating with upadte button please give me perfect solution and its showing error like no column. they is no…
sahana valli
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How to prevent AndroidStudio Android Logcat from filtering my logs

Android studio removes some of my log messages while the app is running. How do I prevent that from happening?
Lena Bru
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How to Crashlytics to Timber in debug mode

Hi I would like stuff from Crashlytics (including setInt, setString etc.) being reported to Logcat (via Timber, though can be directly via Log as well). During debug I would also like to prevent Crashlytics from reporting crashes to server. I…
Jure Sencar
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Problem with dynamically updating text view

I have implemented the logs and they are being displayed on the screen. But even after creating the thread, the logs are not being dynamically updated on the screen. New logs should be appended after one second. While the user stays on the screen,…
Rana Ibtisam
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Why is my LOGCAT in Android Studio constantly logging?

Trying to come to terms with writing an Android plugin for Unity, and the LOGCAT in my Android Studio is constantly logging error and warnings with an idle virtual device. I've never really used LOGCAT before, so I have no idea if this is normal…
GhostRavenstorm
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How to get logcat -v time in an Android App?

I need to get logcat -v time from a device and save it to a text file in a SD Card. The problem is that my application freezes when I press the button to do it. I understand that it might happen because logcat -v time keeps getting the log of all…
Grace G. B.
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