1

I have downloaded the ar foundation app from a course regarding AR Foundation on Coursera. https://www.coursera.org/learn/handheld-ar/ I have successfully run the app on my phone but my phone does not support ARCore, so I went for the emulator. I followed all the instructions on the ARCore Website. But When I install the apk from the unity project and drag-drop on the emulator it gives me String Parse Error

logcat shows:

failed to install my_arr_app.apk: Failure [INSTALL_FAILED_NO_MATCHING_ABIS: Failed to extract native libraries, res=-113]

Can anyone help how to resolve it or how to test my apps to complete the course successfully? Please guide! Thank you in advance

Rehan
  • 454
  • 7
  • 19

2 Answers2

2

See the other answer for the solution

The app is using native libraries compiled for a specific platform. There are multiple different platform types that android supports (armeabi, x86, x86_64, etc.). Depending on the emulator image you are using the app might not include the binaries for your emulator.

You can open the APK in Android Studio (or extract it as a zip) and have a look into the lib folder in the APK. Each subfolder is an architecture name.

Then you can create a new Emulator in the AVD manager and when choosing the system image, select "Other images" and choose one with an ABI which is included in the app.

Example: system image selector

The answers from the following question also might provide some detail: INSTALL_FAILED_NO_MATCHING_ABIS when install apk

JensV
  • 3,997
  • 2
  • 19
  • 43
  • lib says: armeabi-v7a, What to do with the emulator for it? I have a PIxel 2 XL Android 9 – Rehan Apr 14 '20 at 12:23
  • @Rehan create a new virtual device, select Pixel 2 (or Pixel 2 XL), click next, select "Other Images" and choose one which has ABI armeabi-v7a – JensV Apr 14 '20 at 12:24
  • My min sdk is android oreo and there Is no image for armeabi v7a for it? What to do? My app uses ARCore which also requires min sdk of Oreo – Rehan Apr 14 '20 at 12:25
  • @Rehan Uhm... I guess you can't use the app like that then... What's the `.so` file named in the lib directory? – JensV Apr 14 '20 at 12:30
  • There are many .so files in armeabi-v7a (libacore, libunity, libmain) no .so file in lib only one directory! – Rehan Apr 14 '20 at 12:32
  • @Rehan additionally, are you building the app yourself or where exactly have you downloaded it? – JensV Apr 14 '20 at 12:32
  • I have followed a guide on corsera. Build the app on Unity using ARFoundation toolkit – Rehan Apr 14 '20 at 12:33
  • so I cant use it with emulator? – Rehan Apr 14 '20 at 12:34
  • ARFoundation should support other architectures... Which version of ARFoundation are you using? – JensV Apr 14 '20 at 12:34
  • Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/211632/discussion-between-jensv-and-rehan). – JensV Apr 14 '20 at 12:34
  • Application installs perfectly on real device creates problem with emulator. My phone lacks arcore support else would never get into the emulator thing – Rehan Apr 14 '20 at 12:36
0

By the help of @JensV I managed to solve it by choosing the x86 instead of ARMv7. Go to Edit->ProjectSetting->Player->Configuration->Select x86

Rehan
  • 454
  • 7
  • 19