Android Studio ML kit cannot load OCR module

Question

I am working on an android app that involves ML kit. I went through the tutorial on how to set up Android Studio to work with Firebase. Then I headed to use the text recognition API. Here is the code that I am having in some button click listener:

        FirebaseVisionTextRecognizer detector = FirebaseVision.getInstance()
            .getOnDeviceTextRecognizer();
        Task<FirebaseVisionText> result = detector.processImage(
            FirebaseVisionImage.fromBitmap(BitmapFactory.decodeResource(getResources(), R.drawable.test))
        )
            .addOnSuccessListener(new OnSuccessListener<FirebaseVisionText>() {
                @Override
                public void onSuccess(FirebaseVisionText firebaseVisionText) {
                    System.out.println(firebaseVisionText);
                }
            })
            .addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    e.printStackTrace();
                }
            });

I get the following logs:

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$LoadingException: No acceptable module found. Local version is 0 and remote version is 0.
D/TextNativeHandle: Broadcasting download intent for dependency ocr
W/TextNativeHandle: Native handle not yet available. Reverting to no-op handle.
W/DynamiteModule: Local module descriptor class for com.google.android.gms.vision.dynamite.ocr not found.
I/DynamiteModule: Considering local module com.google.android.gms.vision.dynamite.ocr:0 and remote module com.google.android.gms.vision.dynamite.ocr:0
D/TextNativeHandle: Cannot load feature, fall back to load dynamite module.
W/DynamiteModule: Local module descriptor class for com.google.android.gms.vision.ocr not found.
I/DynamiteModule: Considering local module com.google.android.gms.vision.ocr:0 and remote module com.google.android.gms.vision.ocr:0
E/Vision: Error loading module com.google.android.gms.vision.ocr optional module true: com.google.android.gms.dynamite.DynamiteModule$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.
        at com.google.android.gms.internal.firebase_ml.zzrw.zzd(com.google.firebase:firebase-ml-vision@@24.0.0:21)
        at com.google.android.gms.internal.firebase_ml.zzrw.zza(com.google.firebase:firebase-ml-vision@@24.0.0:39)
        at com.google.android.gms.internal.firebase_ml.zzpd.zza(com.google.firebase:firebase-ml-common@@22.0.0:31)
        at com.google.android.gms.internal.firebase_ml.zzpf.call(Unknown Source:8)
        at com.google.android.gms.internal.firebase_ml.zzoz.zza(com.google.firebase:firebase-ml-common@@22.0.0:32)
        at com.google.android.gms.internal.firebase_ml.zzoy.run(Unknown Source:4)
        at android.os.Handler.handleCallback(Handler.java:873)
W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:99)
        at com.google.android.gms.internal.firebase_ml.zze.dispatchMessage(com.google.firebase:firebase-ml-common@@22.0.0:6)
        at android.os.Looper.loop(Looper.java:193)
        at android.os.HandlerThread.run(HandlerThread.java:65)

I googled around to see how I can fix any of those errors:

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.

So far I have tried clearing Google Play Services data (version 19.4.20), restarting/recreating the emulator, tweaking Gradle configurations (e.g. adding/removing firebase-core dependency). Project-level config:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        google()
        jcenter()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.1'
        classpath 'com.google.gms:google-services:4.3.2'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()

    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

App-module-level config:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        applicationId "com.example.user.app"
        minSdkVersion 24
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.google.android.gms:play-services-vision:19.0.0'
    implementation 'com.google.firebase:firebase-ml-vision:24.0.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'

}

apply plugin: 'com.google.gms.google-services'

I decided to give Barcode API a shot, and added

implementation 'com.google.firebase:firebase-ml-vision-barcode-model:16.0.1'

as dependency. To my surprise, when I made an API call to it, the success listner was hit and the following logs appeared:

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
W/is.moneytravel: Accessing hidden field Ljava/nio/Buffer;->address:J (light greylist, reflection)
I/tflite: Initialized TensorFlow Lite runtime.
I/native: barcode_detector_client.cc:222 Not using NNAPI

While the OCR API still produced the same error. I think it has to deal with the repositories the libraries are fetched from. Barcode API:

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

OCR API:

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

I have too little experience with Gradle and Firebase to figure this one out. Why is OCR API fetched from android.gms, while Barcode API comes from firebase.ml?

score 3 · Accepted Answer · answered Oct 27 '19 at 13:15

3

The solution was to update Google Play Services app. I did not consider this as an option at first as I would have expected an API 29 emulator to have an up-to-date Google Play Services installed. I signed into Google Play on the emulator, searched Google Play Services, uninstalled it (there was no "update" option), and installed it again. It still says that the installed version is 19.4.20 though the text recognition started working as expected. Here are some relevant logs:

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.
I/DynamiteModule: Considering local module com.google.android.gms.vision.ocr:0 and remote module com.google.android.gms.vision.ocr:1
I/DynamiteModule: Selected remote version of com.google.android.gms.vision.ocr, version >= 1
V/DynamiteModule: Dynamite loader version >= 2, using loadModule2NoCrashUtils

answered Oct 27 '19 at 13:15

Big Monday

410
4
11

11

We cannot expect our users to update their google play services for our app to work. How can we package up what is needed in the app itself for a production release? – Corey Cole Nov 28 '19 at 00:42
1

I'm having google play service of 20+ but still face this issue. Maybe something else solved it. – Arshed Feb 19 '20 at 14:24
Did you explicitly update google play services? @Arshed – Big Monday Feb 19 '20 at 14:26
In some device firebase ML kit not installing. I made him wait for 10 min but still can't installed text recognition model .Do you have any solution ? – b devloper Feb 22 '20 at 13:19
@bdevloper have you tried installing any other models? I had issues only with OCR, other models were loading fine. – Big Monday Feb 22 '20 at 23:36
I use a OnePlus 6 for a test device. Play services are up-to-date but this error still pops up. Anyone else having the same issue? – Mike Apr 25 '20 at 16:22

ABN · Answer 2 · 2020-07-20T15:04:48.600

1

Try adding following in your AndroidManifest.xml

<application>
    ...

    <meta-data android:name="com.google.android.gms.vision.DEPENDENCIES" android:value="ocr"/>

</application>

Documentation can be found at https://developers.google.com/ml-kit/vision/text-recognition/android

edited Jul 20 '20 at 15:04

answered Jul 20 '20 at 12:54

ABN

374
5
16

score 0 · Answer 3 · edited Feb 22 '21 at 16:59

Here is some code from the manifest, check if you missed something in yours.

ManifestFile installLocation

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.******.***"
    android:installLocation="auto"
/>
<!-- make sure to add 'android:installLocation="auto"', it was missing for me -->

ManifestFile meta-data

<application
    <!-- ..... -->
    <meta-data
        android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" /> <!--version--><!-- make sure added-->
    <meta-data
        android:name="com.google.android.gms.vision.DEPENDENCIES"
        android:value="barcode" /><!-- barcode,face,ocr make sure added-->
    <!-- ..... -->
</application>

Check Internet connection
Check storage for free space

If you work with an emulator

Check if google service have are working properly
Update it if need

score 0 · Answer 4 · answered Feb 25 '21 at 16:12

0

For me, using other AVD fixed the problem. The Google Play store should be up to date. Try use emulator AVD - Android Nexus 5X.

answered Feb 25 '21 at 16:12

vencedor

456
5
9

Android Studio ML kit cannot load OCR module

4 Answers4

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