@mrfleap Are you using http://tomthecarrot.com/projects/arcore-for-all/arcore-preview-modified.apk for arcore-preview? I stop getting "Tango Core has stopped" after using this apk

Thank you for your kind words and logging! I am noticing a pattern with some devices: the Tango
library refuses to check the Vulkan layer search path. I'm not too familiar with Vulkan, but it looks like an essential shared object isn't being loaded.

ApplicationLoaders: ignored Vulkan layer search path /data/app/com.google.tango-2/lib/arm:/system/fake-libs:/data/app/com.google.tango-2/base.apk!/lib/armeabi-v7a for namespace 0xab52d090

#7 #13 #18 have the same issue.

@khursani8 great news! Is ARCore working on your device now?

@khursani8 I was updating the post with the results as you commented, it seems it yields the same results on my device and still has the "Tango Core has stopped" prompt.

@tomthecarrot no, just that the error "Tango Core has stopped" not pop up anymore

@khursani8 Interesting. Do you have a log? Which device are you using?

At least it doesn't crash anymore. That's a good start :P

@mrfleap Thanks for the info. Your device seems to be running without a certain shared object that it needs. It's evident in the other issues I referenced above. If we can find a pattern for this Vulkan search path issue, it likely will help isolate the issue so we can develop another modification.

@tomthecarrot here is my log using Nexus 5

logcat.txt

@khursani8 Weird. I'm seeing the same type of Vulkan search path log in your device's output, but it doesn't crash the service like it does for @mrfleap:
ApplicationLoaders: ignored Vulkan layer search path /mnt/asec/com.google.tango-1/lib/arm for namespace 0xb2a62090

Additionally, there are Unity errors that indicate missing libraries. Does the regular, unmodified Google ARCore sample app work (with the modified service I built)?

If it helps here is the "Phone status" screen on my device:

@mrfleap Oh, I thought this was a Nexus 5. Can you confirm the issue title?

Oh dang, sorry I get these confused. This is a Nexus 6. Sorry.

@mrfleap No worries. Thanks for confirming. The differences in device behavior make more sense now ;)

@tomthecarrot want me to create a new issue for Nexus 5?

@khursani8 That would be great. Thank you!

I use Nexus 6 too and wish I can heard a good news sometimes

got errors on nexus 6

09-06 02:09:44.458 11754-11825/? I/Adreno: QUALCOMM build : a5b4970, If5818605d9
Build Date : 10/12/16
OpenGL ES Shader Compiler Version: XE031.09.00.04
Local Branch : N24D
Remote Branch :
Remote Branch :
Reconstruct Branch :
09-06 02:09:44.477 11754-11825/? I/OpenGLRenderer: Initialized EGL, version 1.4
09-06 02:09:44.477 11754-11825/? D/OpenGLRenderer: Swap behavior 1
09-06 02:09:46.049 11754-11761/? I/art: Ignoring second debugger -- accepting and dropping
09-06 02:09:47.354 11754-11754/? E/SupportedDevices: Device calibration unavailable. Just kidding! ;)
09-06 02:09:47.364 11754-11754/? I/TangoClientLibLoader: Pure Java path, not loading libtango_client_api.so at all.
09-06 02:09:47.375 11754-11754/? D/ApplicationLoaders: ignored Vulkan layer search path /data/app/com.google.tango-2/lib/arm:/system/fake-libs:/data/app/com.google.tango-2/base.apk!/lib/armeabi-v7a for namespace 0x9e45a090
09-06 02:09:47.387 11754-11754/? I/ndk_camera: Starting native camera system initialization.
09-06 02:09:47.389 11754-11754/? D/ndk_camera: Camera 0 has 82 metadata tags
09-06 02:09:47.389 11754-11754/? E/ACameraMetadata: getConstEntry: cannot find metadata tag 1310721
09-06 02:09:47.389 11754-11754/? W/ndk_camera: Failed to get metadata tag 1310721 for camera 0 with error code -10004
09-06 02:09:47.389 11754-11754/? E/ACameraMetadata: getConstEntry: cannot find metadata tag 851977
09-06 02:09:47.389 11754-11754/? W/ndk_camera: Failed to get metadata tag 851977 for camera 0 with error code -10004
09-06 02:09:47.389 11754-11754/? E/ACameraMetadata: getConstEntry: cannot find metadata tag 1638401
09-06 02:09:47.389 11754-11754/? W/ndk_camera: Failed to get metadata tag 1638401 for camera 0 with error code -10004
09-06 02:09:47.390 11754-11754/? D/ndk_camera: Camera 1 has 81 metadata tags
09-06 02:09:47.390 11754-11754/? E/ACameraMetadata: getConstEntry: cannot find metadata tag 1310721
09-06 02:09:47.390 11754-11754/? W/ndk_camera: Failed to get metadata tag 1310721 for camera 1 with error code -10004
09-06 02:09:47.390 11754-11754/? E/ACameraMetadata: getConstEntry: cannot find metadata tag 851977
09-06 02:09:47.390 11754-11754/? W/ndk_camera: Failed to get metadata tag 851977 for camera 1 with error code -10004
09-06 02:09:47.390 11754-11754/? E/ACameraMetadata: getConstEntry: cannot find metadata tag 1638401
09-06 02:09:47.390 11754-11754/? W/ndk_camera: Failed to get metadata tag 1638401 for camera 1 with error code -10004
09-06 02:09:47.390 11754-11754/? I/ndk_camera: Camera system initialized successfully with 2 cameras.
09-06 02:09:47.390 11754-11754/? W/tango_camera_native_jni: Camera system initilized.
09-06 02:09:47.390 11754-11754/? E/tango_camera_native: 2 is not a valid camera index.
09-06 02:09:47.390 11754-11754/? E/tango_camera_native: 3 is not a valid camera index.
09-06 02:09:47.395 11754-11754/? I/tango_camera_native_jni: Attaching texture_window 0xa41b3808
09-06 02:09:47.396 11754-11754/? D/TangoVhs: about to bind as vhs
09-06 02:09:47.409 11754-11754/? D/TangoVhs: finished bind as vhs
09-06 02:09:48.278 11754-11754/? I/Choreographer: Skipped 50 frames! The application may be doing too much work on its main thread.