Android app cannot install ML kit's OCR model

[Big Monday]

Hello, I am building an application that involves ML kit. I am trying to use text recognition API. Then I ran my application from Android Studio I get th following logs when making a call to processImage() method:

W/DynamiteModule: Local module descriptor class for com.google.android.gms.vision.dynamite.ocr not found.

I/DynamiteModule: Considering local module com.google.android.gms.vision.dynamite.ocr:0 and remote module com.google.android.gms.vision.dynamite.ocr:0

D/TextNativeHandle: Cannot load feature, fall back to load dynamite module.

W/DynamiteModule: Local module descriptor class for com.google.android.gms.vision.ocr not found.

I/DynamiteModule: Considering local module com.google.android.gms.vision.ocr:0 and remote module com.google.android.gms.vision.ocr:0

E/Vision: Error loading module com.google.android.gms.vision.ocr optional module true: com.google.android.gms.dynamite.DynamiteModule$LoadingException: No acceptable module found. Local version is 0 and remote version is 0.

W/System.err: com.google.firebase.ml.common.FirebaseMLException: Waiting for the text recognition model to be downloaded. Please wait.

This issue seems to only exist for text recognition, as ML kit works fine when I try to use barcode model:

I/DynamiteModule: Considering local module com.google.firebase.ml.vision.dynamite.barcode:10000 and remote module com.google.firebase.ml.vision.dynamite.barcode:0

    Selected local version of com.google.firebase.ml.vision.dynamite.barcode

I/tflite: Initialized TensorFlow Lite runtime.

I suspect that the issue here is that OCR model is being fetched from com.google.android.gms.vision.ocr.

Here are the dependencies I added in my build.gradle:

implementation 'com.google.firebase:firebase-core:17.2.0'
implementation 'com.google.firebase:firebase-ml-common:22.0.0'
implementation 'com.google.firebase:firebase-ml-vision:24.0.0'
implementation 'com.google.firebase:firebase-ml-vision-barcode-model:16.0.1'

Is there any way to fix this issue?

[Sachin Kotwani]

Hi. Can you please share more details about the device you are using to test? Also, what version of Android is it running?

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[Big Monday]

Sorry for the late response! I was able to solve the problem by explicitly updating Google Play Services on my emulator. 

My SO question with the answer is available here for anyone facing the same issue: https://stackoverflow.com/questions/58477758/android-studio-ml-kit-cannot-load-ocr-module/58579744#58579744

On Monday, October 21, 2019 at 12:39:38 PM UTC-4, Sachin Kotwani wrote:

Hi. Can you please share more details about the device you are using to test? Also, what version of Android is it running?

On Mon, Oct 21, 2019, 11:00 AM Big Monday <alice.mason...@gmail.com> wrote:

Hello, I am building an application that involves ML kit. I am trying to use text recognition API. Then I ran my application from Android Studio I get th following logs when making a call to processImage() method:

W/DynamiteModule: Local module descriptor class for com.google.android.gms.vision.dynamite.ocr not found.

I/DynamiteModule: Considering local module com.google.android.gms.vision.dynamite.ocr:0 and remote module com.google.android.gms.vision.dynamite.ocr:0

D/TextNativeHandle: Cannot load feature, fall back to load dynamite module.

W/DynamiteModule: Local module descriptor class for com.google.android.gms.vision.ocr not found.

I/DynamiteModule: Considering local module com.google.android.gms.vision.ocr:0 and remote module com.google.android.gms.vision.ocr:0

E/Vision: Error loading module com.google.android.gms.vision.ocr optional module true: com.google.android.gms.dynamite.DynamiteModule$LoadingException: No acceptable module found. Local version is 0 and remote version is 0.

W/System.err: com.google.firebase.ml.common.FirebaseMLException: Waiting for the text recognition model to be downloaded. Please wait.

This issue seems to only exist for text recognition, as ML kit works fine when I try to use barcode model:

I/DynamiteModule: Considering local module com.google.firebase.ml.vision.dynamite.barcode:10000 and remote module com.google.firebase.ml.vision.dynamite.barcode:0

    Selected local version of com.google.firebase.ml.vision.dynamite.barcode

I/tflite: Initialized TensorFlow Lite runtime.

I suspect that the issue here is that OCR model is being fetched from com.google.android.gms.vision.ocr.

Here are the dependencies I added in my build.gradle:

implementation 'com.google.firebase:firebase-core:17.2.0'
implementation 'com.google.firebase:firebase-ml-common:22.0.0'
implementation 'com.google.firebase:firebase-ml-vision:24.0.0'
implementation 'com.google.firebase:firebase-ml-vision-barcode-model:16.0.1'

Is there any way to fix this issue?

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