Java 错误程序类型已存在：android.support.design.widget.CoordinatorLayout$Behavior

我在这行有错误

所有com.android.support库必须使用完全相同的版本规范（混合版本可能导致运行时崩溃）。找到版本27.1.1、26.1.0。示例包括com.android.support:animated vector drawable:27.1.1和com.android.support:customtabs:26.1.0

implementation 'com.android.support:appcompat-v7:26.1.0'

是我的

app.gradle

apply plugin: 'com.android.application'


android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.example.akhilkumar.chitchat"
        minSdkVersion 21
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support:customtabs:26.1.0'
    implementation 'com.android.support:design:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    implementation 'com.android.support:support-v4:26.1.0'
    implementation 'com.google.firebase:firebase-database:16.0.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation 'com.google.firebase:firebase-core:16.0.0'
    implementation 'com.google.android.gms:play-services-location:9.2.0'
    implementation 'com.google.firebase:firebase-auth:16.0.1'
    implementation 'com.google.firebase:firebase-messaging:10.2.1'
    implementation 'de.hdodenhof:circleimageview:2.2.0'
    implementation 'com.google.firebase:firebase-storage:16.0.1'
    implementation 'com.theartofdev.edmodo:android-image-cropper:2.7.+'
}
apply plugin: 'com.google.gms.google-services'

---

出现此错误是因为您可以使用旧版本，所以只需更新版本依赖项即可

更改：

编译SDK版本26

或

目标SDK版本26

至

编译SDK版本27

或

目标SDK版本27

同时更改：

implementation'com.android.support:appcompat-v7:27.1.1'

implementation'com.android.support:customtabs:27.1.1'

implementation'com.android.support:design:27.1.1'

---

Sync..

和

清理和重建

此错误是因为您可以使用旧版本，因此只需更新版本依赖项即可

apply plugin: 'com.android.application'


android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.example.akhilkumar.chitchat"
        minSdkVersion 21
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support:customtabs:27.1.1'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    implementation 'com.android.support:support-v4:27.1.1'
    implementation 'com.google.firebase:firebase-database:16.0.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation 'com.google.firebase:firebase-core:16.0.0'
    implementation 'com.google.android.gms:play-services-location:9.2.0'
    implementation 'com.google.firebase:firebase-auth:16.0.1'
    implementation 'com.google.firebase:firebase-messaging:10.2.1'
    implementation 'de.hdodenhof:circleimageview:2.2.0'
    implementation 'com.google.firebase:firebase-storage:16.0.1'
    implementation 'com.theartofdev.edmodo:android-image-cropper:2.7.+'
}
apply plugin: 'com.google.gms.google-services'

更改：

编译SDK版本26

或

目标SDK版本26

至

编译SDK版本27

或

目标SDK版本27

同时更改：

implementation'com.android.support:appcompat-v7:27.1.1'

implementation'com.android.support:customtabs:27.1.1'

implementation'com.android.support:design:27.1.1'

---

Sync..

和

清理和重建

我通过简单的更改解决了这个问题

apply plugin: 'com.android.application'


android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.example.akhilkumar.chitchat"
        minSdkVersion 21
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support:customtabs:27.1.1'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    implementation 'com.android.support:support-v4:27.1.1'
    implementation 'com.google.firebase:firebase-database:16.0.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation 'com.google.firebase:firebase-core:16.0.0'
    implementation 'com.google.android.gms:play-services-location:9.2.0'
    implementation 'com.google.firebase:firebase-auth:16.0.1'
    implementation 'com.google.firebase:firebase-messaging:10.2.1'
    implementation 'de.hdodenhof:circleimageview:2.2.0'
    implementation 'com.google.firebase:firebase-storage:16.0.1'
    implementation 'com.theartofdev.edmodo:android-image-cropper:2.7.+'
}
apply plugin: 'com.google.gms.google-services'

实现'com.android.support:design:26.1.0'

至

implementation 'com.android.support:design:27.1.0'
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support:support-v4:26.1.0'

我希望这有助于。。。还要做一个渐变更新

---

特别是对于react native navigation v2，我通过简单的更改解决了这个问题

实现'com.android.support:design:26.1.0'

至

implementation 'com.android.support:design:27.1.0'
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support:support-v4:26.1.0'

我希望这有助于。。。还要做一个渐变更新

---

专门针对react native navigation v2

你可以使用哪个android studio？@MohammadAli android 3.1.2按照我的回答进入设置如果脱机模式为启用，请进入设置并禁用@CharyJagdeeshTry此链接，我希望它能对你有所帮助。你可以使用哪个android studio？@MohammadAli android 3.1.2根据我的回答进入设置如果离线模式为启用，请进入设置并禁用@Charyjagdeesh尝试此链接，我希望它能对你有所帮助。Thnak很多兄弟，稍有变化后工作正常欢迎你，我的答案对你有效，然后选择正确答案@charyjagdeeshnaks很多兄弟，稍有变化后工作正常欢迎你，我的答案对你有效，然后选择正确答案@CharyJagdeesh