My app crashes on startup when using AVD, but I cannot see debug output.
Debug output is in the Android tab. Anyway you can use adb logcat.
You should watch adb logcat. It is below in Android Studio. When you get the error, don't press OK. You should open android studio and adb logcat. You can see the error what is it.
Related
can someone got problem like me the logcat show error com.android.studio E/AndroidLogcatService: com.android.ddmlib.ShellCommandUnresponsiveException
restart android studio
invalidate cache still not working
use emulator or use real device with usb or wifi still same
update adb not fixed it
my adb already new on version
i dont know how to fix it now
adb logcat working on cmd
but i need adb logcat on android because cant instal apk directly from android studio show message waiting device to online
I'm working on a project for my Android class using the latest version of Android Studio (3.4.1) and my app isn't working right. I can't see what's going wrong because nothing shows up in the Logcat.
I'm running my app on a physical phone since Android Studio doesn't like AMD. I have "Show only selected application" selected and it shows my phone is connected. I tried restarting Logcat, but that didn't do anything.
screenshot to show my issue
Just try ,Invalidate and Restart Android Studio or Restart Android Studio.
Keep the device connected. Open terminal from below. Type following command to kill and start adb.
adb kill-server && sudo adb start-server
If the command doesn't work, you will need to fire it from /sdk/platform tools/
i connect android studio to my phone via usb.
my android project will be work correctly when i debug it.
but when I'm clicking on apk file for installing it quickly stops and
i will receive "unfortunately has stopped" .
and there is no issue on logcat.
If you have the same project syncd on your android studio with same package name on your Android phone you will be able to debug it.
Be careful that this DOES NOT guarantee that you have the same code version on your IDE and in your device.
and there is no issue on logcat
This is highly unlikely.
Please, proceed with these comands on your prompt/bash/terminal:
adb kill-server
adb start-server
adb logcat -c
adb logcat (and press "play" button)
See logs.
I am trying to debug my android application using log messages. When I use System.out.println and Log.i and run the android application,I cannot see the debug message in either console or Logcat. If I have to get the debug messages do I have to run the android app in debug mode
from eclipse goto window -> open perspective -> other -> select DDMS.
And then run your app. And then select your running device from DDMS.
If it is not resolved your problem, restart your eclipse without closing your emulator and then flow the same above steps.
Njoy,
You do not need to run your app in debug mode to see log messages.
In order to see the log messages, you only need to have usb debugging enabled on your phone, the adb drivers for your device installed, and a copy of the android developer tools. It sounds like you have the above things, so I will suggest some steps for troubleshooting this.
Don't use System.out.println, because it does not allow you to specify a tag. Make sure that you set a good tag for your log messages. Once all of the above is confirmed, attempt to view the log message in eclipse's logcat view. Create a filter with the tag you are using because many messages will print and it may be difficult to find yours. You can also filter by application by using the name of your application's package.
If you have tried all this and you still can't see log messages, try running:
adb kill-server
and
adb start-server
If no luck, try restarting eclipse.
Confirm your device is plugged in!
If none of this is working, you can also run ddms from the sdk tools which is a bit more reliable.
Finally if that doesn't work, you can simply issue an adb logcat on the command line. If you have multiple devices, you can list them with adb devices and resolve the device or emulator with -d for the only connected device, -e for the emulator, or -s serialno to resolve otherwise.
There are also tools that will allow you to view the logs on your device, such as alogcat
sometime you may not select the emulator
and another way is to
restart your eclipse i also have faced this problem many times
If you're using Eclipse make sure that:
You have Debugging enabled in your device (or that you use emulator),
Your device is connected properly - it should show up in the Devices view. If you don't have this view get it from Window->Show View->Devices,
You've SELECTED your device in the Device View (simply click on it),
You don't have the LogCat paused and no filter is enabled - All messages (no filters).
This is pretty simple: I'm using NetBeans on Linux with Android emulator 1.6. I have Logcat on my android phone, but the process of getting the messages to somewhere readable isn't smooth at all.
Can someone tell me how to get Logcat running on the emulator? Is there anything I can do to see debug messages other then having to copy the apk to my phone and testing it?
Thanks in advance!
You have a few options for viewing the debug log output, assuming you have the SDK installed and your command path set up correctly:
Type adb logcat. The log output from the connected device or running emulator will appear. I usually prefer adb logcat -v time to see the time stamps.
Type ddms. This launches the stand-alone version of DDMS. It has a logcat display at the bottom.
Install the ADT extension for Eclipse, and open the logcat view. (Since you're using NetBeans I assume this isn't what you want to do, but I'm mentioning it for completeness.)
In all cases, the interaction is the same whether you're using a physical device or software emulator, because the ADB daemon conceals the details. Whatever you're doing for the device is also expected to work for the emulator.
If you have a device and emulator connected simultaneously, you can use adb -e logcat for the emulator and adb -d logcat for the device. From stand-alone DDMS or Eclipse, just pick the device or emulator from the pop-up menu.
If you have setup nbandroid you can find the adb logcat viewer in netbeans under:
Window -> Output -> ADB Log
--edit
Just followed up on the post above and started using C:\Program Files (x86)\Android\android-sdk-windows\tools\ddms which is alot better then the one in netbeans.
The SDK comes with a handy tool called ddms it should be in the tools folder of the SDK.
At the moment an Emulator is running, or a mobile phone is connected to your machine it should show up in ddms and you can see all the log output in ddms.