Ubuntu下Android Studio中build.gradle第6行Value is null错误求助

错误详情 #

• 错误位置：构建文件/home/androiddeveloper/Documents/shikshakmasik_sunil/app/build.gradle第6行
• 错误提示：A problem occurred evaluating project ':app'. > Value is null
• 完整错误栈：

* Exception is:
org.gradle.api.GradleScriptException: A problem occurred evaluating project ':app'.
    at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:93)
    ... 178 more
Caused by: java.lang.IllegalArgumentException: Value is null
    at org.gradle.internal.metaobject.BeanDynamicObject.<init>(BeanDynamicObject.java:100)
    ... 25 more

用户提供的app/build.gradle内容 #

android {
    compileSdk 33.0.0

    defaultConfig {
        applicationId "com.shikshakmasik"
        minSdkVersion 19
        targetSdkVersion 33.0.0
        versionCode 4
        versionName "1.3"
        multiDexEnabled true
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            pro3uardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    repositories {
        flatDir {
            dirs "libs"
        }
    }
    namespace 'com.shikshakmasik'
    buildToolsVersion "34.0.0"
    compileSdk 34
}
dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    //noinspection GradleCompatible

    implementation 'com.android.support:appcompat-v7:33.0.0'
    implementation 'com.android.support.constraint:constraint-layout:2.0.4'
    implementation 'com.android.support:support-v4:33.0.0'
    testImplementation 'junit:junit:4.12'
    implementationentation 'com.android.support:design:2Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/018.0.0'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation 'com.github.bumptech.glide:glide:4.9.0'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.9.0'
    implementation 'com.android.support:recyclerview-v7:33.0.0'
    //noinspection GradleDependency
    //implementation 'com.google.android.gms:play-services-ads:16.0.0'
    //aDmob

    implementation 'com.github.barteksc:android-pdf-viewer:2.8.2'
    implementation 'com.google.firebase:firebase-core:21.1.1'
    // this line must be included to integrate with Firebase
    implementation 'com.google.firebase:firebase-messaging:23.2.1'
    implementation 'com.google.android.gms:play-services-auth:20.7.0'

    implementation 'com.android.volley:volley:1.2.1'

    implementation 'com.android.support:multidex:1.0.3'
    implementation files('libs/YouTubeAndroidPlayerApi.jar')

    //circle image view
    implementation 'de.hdodenhof:circleimageview:2.2.0'

    implementation files('libs/activation.jar')

    //etgksdk
    implementation(name: "etgkSdk", ext: "aar")
    // zoomable image view
    implementation 'com.github.chrisbanes:PhotoView:2.0.0'
    implementation 'com.intuit.sdp:sdp-android:1.0.6'
}
apply plugin: 'com.google.gms.google-services'

具体修复步骤 #

1. 修正compileSdk与targetSdkVersion的定义 #

• 删除重复的compileSdk 33.0.0，保留compileSdk 34（使用整数API级别，不要带小数点）
• 将targetSdkVersion 33.0.0改为targetSdkVersion 34（同样使用整数）

修改后的android块片段：

android {
    compileSdk 34

    defaultConfig {
        applicationId "com.shikshakmasik"
        minSdkVersion 19
        targetSdkVersion 34
        // ... 其他配置不变
    }
    // ... 其他配置不变
}

2. 修复依赖声明的语法错误 #

找到dependencies块中错误的implementationentation行，替换为正确的依赖：

// 替换错误行
implementation 'com.android.support:design:28.0.0'

3. 修正proguard拼写错误 #

将buildTypes中pro3uardFiles改为proguardFiles：

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

4. 统一support库版本 #

com.android.support库最高稳定版本为28.0.0，不存在33.0.0版本，将所有support库版本统一为28.0.0：

implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:support-v4:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'

5. 清理并重新构建 #

• 执行Build -> Clean Project
• 执行Build -> Rebuild Project

内容的提问来源于stack exchange，提问作者BSAI Techno Sales