How do I debug an Ionic app on an Android device using VS Code and Chrome Debugger?
Chrome Debugger (vscode-chrome-debug) documentation mentions that remote debugging can be done so I'm assuming that this means it can be done on an Android Device.
Can anyone give the steps and launch.json file for this?
Hi this one bothered me too for a period of time.
I use a simple approach to achieve this.
Run the command
cordova run android -debug
And I keep the android studio open along with it.
Now when your application is running on your device or simulator you can select that in Android studio and select the process you want to debug.
in android monitor you can get all the logs for that application.
Note:- It doesn't matter what application is open in Android Studio, as long your ionic app is in debug mode you can get logs there.
After updating to Android Studio 2.0 my debugger stopped working. When I try to run my app as debug I get stuck waiting for debugger. I can still run app normally.
So there are tons of post on this issue, I've tried everything I could find:
Restart ADB
Restart Android Studio
Restart phone
Restart Computer
Switch USB port
Update everything
Switch develop on/off
Tried with emulator (will also be stuck)
Uninstal Vyzor beta (Chrome plugin that use ADB)
Remove project and load into Android Studio again
Updated JDK 1.7.0_71 to 1.8.0_74
Okay so my application was using android:process=":background" under the application tag. So now with Android Studio 2.0 I had to click "Attach debugger to Android Process" and select the :background process.
This has not been an issue in the past.
If a single activity uses another process then the debugger will also hang at that activity until the debugger is attached to that process (attaching is done manually).
When using Visual Studio 2015 to develop c++ for Android the emulator only works if you are running a Pro version of Windows, for those using Visual Studio Community who are probably also running on a Home version of windows (like me) the Emulator will not work.
Is there an alternative available that can integrate with the VS debugger?
*** Edit
I have been looking at this list Android emulators although this seems to be aimed at android gaming on PC rather than App development. So was wondering if anyone had managed to integrate one of these with Visual Studio?
Both the below options come with the caveat that I have not used either.
Xamarin Android Player
Apparently Xamarin had issues with the default Android Emulator. Primarily that it was slow, and clunky, and they were getting a lot of complaints about it from Xamarin users (despite it not being their product/fault).
They decided to create their own emulator to get around this, and it can be found here.
It should be noted that (at time of writing) this is still in Preview by the looks of things. So bugs may be present.
From what I can see on the download page, it doesn't appear like you need Xamarin to actually use it. In any case, it's worth a shot.
GenyMotion
Another option is GenyMotion. There is a free version for personal use only (with limited functionality), or a paid option that provides more capability.
Android player link has changed to here: https://developer.xamarin.com/releases/android/android-player/
I had problems starting the android VMs, even after restarting the host. There seems to be some incompatibilities between Windows 10 Home and Virtualbox 5.0.4 that Android player installs. Installing Virtuallbox 5.1.2 after installing Android player seems to have resolved this.
EDIT: I haven't had a chance to test integration with Visual Studio yet.
Everything seems to be working as expected within Visual Studio. Both of the VM devices I created in Android Player are visible in the drop down of the run menu. Visual Studio will start the selected VM when I debug the default blank android app.
The only hiccup is that Visual Studio doesn't wait long enough for the emulator to start before attempting to deploy the app. So I have to start the run again or remember to start the VM from Android Player before debugging.
I create blank xamarin android project without add any code when i debug this project debugging without problem but when i run app with visual studio emulator for android emulator is running but not starting my app and deploy failed and don't show me error
why ?
please help me
I had the same issue. VS 2015 can launch the VS emulator but can't deploy the app.
I was able to solve the issue like this:
Launch the emulator (F5 in VS, then cancel the deployment using the Build/Cancel menu)
Click on the chevron icon (») in the toolbar to the right of the emulator
Select the Network tab
Locate the preferred network ip address
Back in VS, click on the Open Adb Command Prompt toolbar button
Type adb connect [the emulator ip address]
Press F5 again in VS
Looks like a VS bug to me.
I had the same issue. It turned out the root cause was that the VS Emulator couldn't find adb.exe.
When that happens it won't connect to the emulator unless you do the manual connection following the steps CSharpRocks gives. The emulator also won't be listed under "adb devices".
The fix for me was to reinstall the Android SDK, using the Windows EXE based installer (not the zip installer). The EXE installer sets the HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Android SDK Tools key, Path value, in the registry, pointing to the Android SDK root directory.
The VS Emulator uses that registry setting (or the Android Studio install registry setting) to find the SDK, assuming you didn't install the Android SDK with Visual Studio itself. With that, it should be able to find adb.exe and work.
Have a look here:
Xamarin Forms Android App Crashes Running Debug with VS Android Emulator
Start the Hyper-V manager
Select the emulator you are trying to use
Right-click, hit settings
Click processor
Click Compatibility
Set checkbox “Migrate to a physical computer with a different processor version”
I'm having a very similar issue. I have found two different kind-of-work-arounds, but have not yet figured out a full solution.
Start the emulator before trying to deploy to it
Launch the Visual Studio Emulator for Android application from the start menu.
Launch one of the available emulators via the green arrow
Attempt to again launch your application from visual studio, selecting the VS Emulator N-inch... emulator from the drop down menu
For me for some reason the app still doesn't "launch" on the emulator, although it is installed. So I have to open the application menu and select my app. Additionally it will usually crash the first several times I try to open it, but eventually displays my single default label, Welcome to Xamarin Forms!.
Run the application in Ad-Hoc mode
Before running the application, change the solution configuration (from the top toolbar next to the green "run" button) to Ad-Hoc.
The problem with both of these methods though is that I'm still not able to actually debug an application. I can run it, but my breakpoints are ignored and I think that will make finding bugs difficult once I actually start to write a real application.
I hope to update this answer once I figure out an actual solution.
I had the same problem yesterday. The problem appeared (probably) because I tried to start development after a long break. I updated VS and everything, but faced many issues.
Eventually you need to start fresh
Make sure SDK for emulator points to the right place (HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Android SDK Tools)
Run Visual Studio with Administrator privileges
Go to Hyper-V Manager and delete ALL Virtual Switches - let the system recreate them when needed. It will do it properly
Delete all existing emulators and recreate them in Visual Studio. I even found a comment to name them without spaces - not sure if it is needed, but wouldn't hurt.
Doing all this helped me. But I was on the verge of reinstalling Windows 10 clean. I think lots of things and configuration changed and are no longer compatible.
Try it enabling Hyper-V and using a Visual Studio Emulator from android; that worked for me after a lot of attempts and research
I had the same issue but in my case it was not the registry. After doing a release build, I deployed the app to the emulator device in release mode which pushes the app to the device and then effectively "disconnects". This leaves a version of the app on the device which seems to block further attempts at debugging or deploying.
I solved it by starting the emulator, going to "settings -> apps" and manually uninstalling my app. Then the next debug build & deploy worked again.
You could probably also manually start the emulator and say "wipe device" option so it starts fresh.
In VS2017, on a Windows10 machine, all I had to do to get the app to show up was turn off Mobile Data.
(swipe down or use settings, then click Mobile Data and confirm to turn it off).
After I turned it back on, I could access the app. Before doing this, it always seemed that the emulator ran, but wouldn't run the app.
... no idea why this worked, but I'm posting it here in case it helps someone.
During my troubleshooting process, I also looked at these articles:
VS Android Emulator wont run application
Troubleshooting the Visual Studio Emulator for Android
Update Your Path For The New Android Emulator Location
Install apache in VS 2015 here.
Visual studio requires apache to develop android apps.
You also may want to look at some other suggestions:
notshowing, troubleshooting
I had such issues before with the android SDK emulator, now I'm using Genymotion emulator instead of it, it is more light and faster and will be detected automatically by you VS once launched.
you can download the free version from here : https://www.genymotion.com/
and also you can download any device emulator.
I'm newbie in Titanium Studio and I have some weird questions:
- When I choose a new Mobile Project and trying to Run under the Android SDK Emulator,
I able to see the phone screen but when I'm going in the emulator to the apps list, I cant see the application I just created...
any ideas?
thanks.
When you hit Run it is automatically installed in your device/emulator.
Be sure it was successfully installed in your emulator first, please see:
Android troubleshooting
The initial launch of the Android emulator can be quite slow and Studio may timeout before it can install and launch the application. If this happens just click Run in Studio again. Subsequent launches should not time out on the same virtual device.
http://docs.appcelerator.com/titanium/latest/#!/guide/Creating_Your_First_Titanium_Apps-section-37541502_CreatingYourFirstTitaniumApps-AddaTableView