I am trying to build a ionic project in Android studio on Ubuntu 20.04 . I am using the command ionic capacitor build then android studio opens up as expected then it shows this error Gradle sync failed: Sync failed: reason unknown. I am unable find a solution for this particular gradle sync error. I have reinstalled Ubuntu and other things but still the problem persists.
In my case, a fresh install of Android Studio resulted in Android 31 being the only SDK available but the project was targeting Android 30. I went to Tools > SDK Manager and made sure the appropriate version of Android SDK was installed and available. After restarting, and allowing the gradle sync to complete I was able to build/run the app on a virtual device, etc.
Here is what I found
This is the screenshot thanks for helping.
Capacitor lets you manage your own Android project. Like any IDE-backed project, sometimes things get so out of sync that the only solution is to rebuild the project.
To do this, follow these steps:
Copy any source code you created (such as Java files in app/android/src, manifest files, or resource files) into a safe location outside of app/android.
Next, make sure you are running an updated version of the Capacitor CLI:
npm install #capacitor/cli#latest
Remove the android directory:
rm -rf android/
Re-create the Android app from Capacitor:
npx cap add android
Copy your saved source files back into the project.
Check the error log. You should find something like "Module: 'mobile' platform 'android-30' not found" or something similar. Click Tools > SDK Manager and download the appropriate Android SDK Platform package.
on top right you will see option to view log file upon clicking there you will redirect to file manager and open idea file there
example :
open idea file and scroll down you will see actual issue.
In my case android sdk 31 was not installed.
I installed android sdk 31 from File>Settings>Apprearance and behaviour>system settings>android sdk and install required android sdk and rebuild the project.
accord to my observation in most cases you get this error because you have not required sdk installed in your system.
I'm running into the error when I tried to run the existing project.
Error: "AndroidManifest.xml doesn't exist or has incorrect root tag"
I'm seeing a lot of solutions suggesting using "Sync project with Gradle files". I'm running Android Studio on my Mac and did not see that option. I do have AndroidManifest.xml file in the project but for some reason Android Studio can't find it.
I have the file under project_name > app > src > main > res.
I have Android Studio 4.1.1 and macOS Catalina 10.15.7
I also got a recommendation when I open up the Android Studio
Migrate Project to Gradle?
This project does not use the Gradle build system. We recommend that you migrate to using the Gradle build system.
More Information about migrating to Gradle
Don't show this message again.
Not sure what to do about it. I'm pretty new to Android Studio. Thanks!
Im currently developing an android app with flutter using VScode. So this problem happened after i update my windows from 1903 to 1909 yesterday. I tried to run and debug my app in vscode it shows:
"sun.security.ec.ECKeyPairGenerator.isCurveSupported([B)Z".
the same thing happen with Android Studio when im trying to test my code. Even the gradle sync in android studio failed with the same message (see the image below):
Error screenshot
I'm using ubuntu and I am coding with flutter in android studio. When my run my first app, android studio give me this error.
I am already tried what error text told me.
Here's the error
I installed android studio and when I tried to open the android studio I cant run android emulator and It display the error report in below tab.
This is that error message
null value in entry:libOutputDir=null
and line down display the Build Failed
This maybe a gradle bug. Delete the gradle folder in the root directory of your application. Then open the app, let the studio rebuild the gradle again. This has been an issue for a lot of people.