Cant import some modules

[Tamada4a]

Hi! I'm trying to make an app with face recognition. At first I tried to use javacv 1.5.x, but nothing worked

my implementations here:

implementation 'org.bytedeco:javacpp-platform:1.5.8'
implementation 'org.bytedeco:opencv-platform:4.6.0-1.5.8'
implementation 'org.bytedeco:ffmpeg-platform:5.1.2-1.5.8'

then I copied all the implementation from the example, but I still can't import

my gradle:

defaultConfig {
        applicationId "com.example.findyourselfinthephoto"
        minSdk 21
        targetSdk 32
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
    }

dependencies {
        implementation 'com.android.support:multidex:1.0.3'
        implementation 'org.bytedeco:javacv-platform:1.4.3'
        implementation 'org.bytedeco.javacpp-presets:opencv:3.4.3-1.4.3'
        implementation 'org.bytedeco.javacpp-presets:ffmpeg:4.0.2-1.4.3'
}

Im using the last version of Android Studio and last version of Gradle

[saudet]

Please follow the instructions here: https://github.com/bytedeco/gradle-javacpp#the-platform-plugin

[Tamada4a]

@saudet maybe i'm stupid, but I added the plugin to the top-level build.gradle, then added it to app/build.gradle, added dependencies there, but still doesn't see some packages.

my settings.gradle:

pluginManagement {
    repositories {
        gradlePluginPortal()
        google()
        mavenCentral()
    }
}
dependencyResolutionManagement {
    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
    repositories {
        google()
        mavenCentral()
        maven { url 'https://jitpack.io'} //for MultiImageView
    }
}
rootProject.name = "FindYourselfInThePhoto"
include ':app'
include ':OpenCVLibrary'

my top-level build.gradle:

plugins {
    id 'com.android.application' version '7.3.1' apply false
    id 'com.android.library' version '7.3.1' apply false
    id 'org.bytedeco.gradle-javacpp-platform' version '1.5.8'
}

ext {
    javacppPlatform = 'android-arm,android-x86' // defaults to Loader.getPlatform()
}

app/build.gradle:

plugins {
    id 'com.android.application'
    id 'org.bytedeco.gradle-javacpp-platform'
}

android {
    compileSdk 32

    defaultConfig {
        applicationId "com.example.findyourselfinthephoto"
        minSdk 21
        targetSdk 32
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        //coreLibraryDesugaringEnabled true
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    packagingOptions {
        exclude 'META-INF/native-image/**/**.json'
        exclude 'META-INF/native-image/*.json'
        exclude 'META-INF/native-image/**'
        //pickFirst 'nd4j-native.properties'
    }
}

dependencies {

    implementation 'androidx.appcompat:appcompat:1.5.1'
    implementation 'com.google.android.material:material:1.7.0'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'

    implementation 'com.github.martipello:MultiImageView:1.0.8.2' //MultiImageView(PhotoCollage)

    implementation 'com.squareup.okhttp3:okhttp:4.10.0' //get-requests
    implementation 'com.sezinkarli:random-user-agent-generator:1.3' //random user-agent

    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation project(path: ':OpenCVLibrary')

    implementation 'com.github.onimur:handle-path-oz:1.0.7' //handle real path

    api 'org.bytedeco:javacv-platform:1.5.8'
    api 'org.bytedeco:opencv-platform-gpu:4.6.0-1.5.8'
    api 'org.bytedeco:ffmpeg-platform-gpl:5.1.2-1.5.8'
}

[saudet]

You'll need to say which packages are missing so that we may add them.

[Tamada4a]

I tried to made face recognition app and trying to import packages from this example. It is not possible to import the following packages here:

import org.bytedeco.javacpp.BytePointer;
import org.bytedeco.javacpp.IntPointer;
import org.bytedeco.javacpp.DoublePointer;

import static org.bytedeco.opencv.global.opencv_core.*;
import static org.bytedeco.opencv.global.opencv_face.*;
import static org.bytedeco.opencv.global.opencv_imgcodecs.*;

I also tried to import packages from this example to check if I connected the dependencies correctly, but the following packages were not found:

import static org.bytedeco.opencv.global.opencv_core.*;
import static org.bytedeco.opencv.global.opencv_imgproc.*;
import static org.bytedeco.opencv.global.opencv_calib3d.*;
import static org.bytedeco.opencv.global.opencv_objdetect.*;

Maybe I connected something wrong, since I don't have most of the packages from the example?

[saudet]

my top-level build.gradle:

Adding dependencies there won't add them to your Android project. You'll need to add them to app/build.gradle as per the instructions here: https://github.com/bytedeco/gradle-javacpp#the-platform-plugin

[Tamada4a]

I have them in app/build.gradle already

[saudet]

When you say "not possible to import", what kind of error do you get? For example, you won't be able to use it with another build of OpenCV, so you'll have to remove those lines:

    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation project(path: ':OpenCVLibrary')

Also, it's possible ProGuard is doing something you're not expecting it to do, so you should remove these lines as well:

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

[Tamada4a]

I have created a new project, but the imports still don't work

When you say "not possible to import", what kind of error do you get?

I mean, I don't have the packages I need - they are not imported

my app/build.gradle:

plugins {
    id 'com.android.application'
    id 'org.bytedeco.gradle-javacpp-platform'
}

android {
    namespace 'com.example.myapplication'
    compileSdk 32

    defaultConfig {
        applicationId "com.example.myapplication"
        minSdk 21
        targetSdk 32
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    /*buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }*/
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    packagingOptions {
        exclude 'META-INF/native-image/**/**.json'
        exclude 'META-INF/native-image/*.json'
        exclude 'META-INF/native-image/**'
    }
}

dependencies {

    implementation 'androidx.appcompat:appcompat:1.5.1'
    implementation 'com.google.android.material:material:1.7.0'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'

    implementation group: 'org.bytedeco', name: 'javacv-platform', version: '1.5.8'
    implementation group: 'org.bytedeco', name: 'opencv-platform', version: '4.6.0-1.5.8'
    implementation group: 'org.bytedeco', name: 'ffmpeg-platform', version: '5.1.2-1.5.8'

}

settings.gradle:

pluginManagement {
    repositories {
        gradlePluginPortal()
        google()
        mavenCentral()
    }
}
dependencyResolutionManagement {
    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
    repositories {
        google()
        mavenCentral()
    }
}
rootProject.name = "My Application"
include ':app'

build.gradle:

plugins {
    id 'com.android.application' version '7.3.1' apply false
    id 'com.android.library' version '7.3.1' apply false
    id 'org.bytedeco.gradle-javacpp-platform' version '1.5.8'
}

[saudet]

That sounds like a problem either with your IDE or with your installation of Gradle. If clearing caches and what not doesn't fix this, I'd say to try and reinstall everything from scratch. This doesn't look like an issue with JavaCV.

[Tamada4a]

Does this mean that my app/build.gradle, settings.gradle and build.gradle is correct? And implementations is correct too? And i connect plugin correctly?

[saudet]

That looks fine, but IntelliJ and Gradle are quite buggy, so sometimes we need to reinstall them.

[Tamada4a]

Okey, i'll clear cache and reinstall Gradle and IDE if needed

[Tamada4a]

Still nothing((( Maybe you have fresh example of Android project that implements JavaCV with other modules and its work fine? Because i dont know what is going wrong: i have cleared cache, reinstall gradle and IDE, trying different examples. But nothing works...

[saudet]

If you're having problems with other libraries, you'll need to specify what they are to get a meaningful answer.

[Tamada4a]

No. Problems only with JavaCV (

[saudet]

So what do you mean by "other modules"?

[Tamada4a]

No. Problems only with JavaCV ( Here I mean that I have such problems only with bytedeco libraries (JavaCV, javacpp, javacpp-presets)

"other modules" I mean that, for example, in import org.bytedeco.opencv. i cant import global package and i get following problem: Cannot resolve symbol 'global'. With the rest of the same problem

Like this

[saudet]

This sample project has been working fine for everyone that I'm aware of: https://github.com/bytedeco/sample-projects/tree/master/JavaCV-android-example

[Tamada4a]

I do not know how, but this example did not work for me before. Thanks!