Firebase ml vision：平台异常未捆绑任何型号

当我尝试从imagelabeler调用processImage（）时，出现以下错误 正如在他们的文档中提到的，我已经添加了依赖项，但它似乎仍然不起作用

错误

项目级build.gradle文件 正如他们在官方文件中提到的那样。我在buildscript和dependency部分都添加了maven存储库

buildscript {
    repositories {
        google()
        jcenter()
        maven{
            url 'https://maven.google.com/'
            name 'Google'
        }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:4.0.2'
        classpath 'com.google.gms:google-services:4.3.4'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven{
            url 'https://maven.google.com/'
            name 'Google'
        }
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

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

---

你解决了吗？到目前为止运气不好。如果我得到解决方案，我会发布它

Future<void> _labelScanner() async{
    result='';
    FirebaseVisionImage visionImage = FirebaseVisionImage.fromFile(_pickedImage);
    ImageLabeler labeler = FirebaseVision.instance.imageLabeler();
    final List<ImageLabel> labels = await labeler.processImage(visionImage);
    for(ImageLabel label in labels){
      print(label.toString());
    }
  }

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
apply plugin: 'com.google.gms.google-services'


android {
    compileSdkVersion 29

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.b.biradar.flutter_ml_practice"
        minSdkVersion 16
        targetSdkVersion 29
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
    }

    buildTypes {
        release {
            // TODO: Add your own signing config for the release build.
            // Signing with the debug keys for now, so `flutter run --release` works.
            signingConfig signingConfigs.debug
        }

        dependencies {
            implementation platform('com.google.firebase:firebase-bom:26.1.0')
            implementation 'com.google.firebase:firebase-ml-vision'
            implementation 'com.google.mlkit:image-labeling:17.0.0'
            implementation 'com.google.android.gms:play-services-vision:20.1.1'
            implementation 'com.google.android.gms:play-services-vision-common:19.1.1'
            implementation 'com.google.android.gms:play-services-vision-image-label:18.0.5'
            implementation 'com.google.android.gms:play-services-vision-face-contour-internal:16.0.2'
        }


    }
}

flutter {
    source '../..'
}

buildscript {
    repositories {
        google()
        jcenter()
        maven{
            url 'https://maven.google.com/'
            name 'Google'
        }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:4.0.2'
        classpath 'com.google.gms:google-services:4.3.4'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven{
            url 'https://maven.google.com/'
            name 'Google'
        }
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

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