我在使用build.gradle文件时遇到问题，尤其是模块'android.x.lifecycle'。
我有以下错误
ERROR: Failed to resolve: androidx.lifecycle:lifecycle:2.2.0-beta01
This is the last version of androidx.lifecycle
我不知道这是否是语法错误
这是 build.gradle 文件
apply plugin: 'com.android.application'
android {
compileSdkVersion 29
defaultConfig {
applicationId "com.flixarts.ar.englishnow"
minSdkVersion 14
targetSdkVersion 29
buildToolsVersion '25.0.2'
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
buildToolsVersion = '28.0.3'
}
dependencies {
implementation 'androidx.lifecycle:lifecycle:2.2.0-beta01'
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.recyclerview:recyclerview:1.0.0'
implementation 'com.google.android.material:material:1.1.0-beta01'
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'androidx.appcompat:appcompat:1.1.0'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'com.google.android.gms:play-services-ads:18.2.0'
implementation 'com.android.support:multidex:1.0.3'
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 'androidx.cardview:cardview:1.0.0'
}
更改此行：
androidx.lifecycle:lifecycle:2.2.0-beta01
其中之一：
implementation "androidx.lifecycle:lifecycle-extensions:2.2.0-beta01"
implementation "androidx.lifecycle:lifecycle-viewmodel:2.2.0-beta01"
implementation "androidx.lifecycle:lifecycle-livedata:2.2.0-beta01"
implementation "androidx.lifecycle:lifecycle-livedata-core:2.2.0-beta01"
implementation "androidx.lifecycle:lifecycle-runtime:2.2.0-beta01"
有关生命周期的详细信息，请单击此处。
也：
- 将
com.android.support:multidex:1.0.3更改为androidx.multidex:multidex:2.0.1，因为您使用的是 androidx 库 - 您要添加
implementation 'androidx.appcompat:appcompat:1.1.0'三次 - 删除支持库：
implementation 'com.android.support.constraint:constraint-layout:1.1.3' - 删除
buildToolsVersion '25.0.2'和buildToolsVersion = '28.0.3'(在任何情况下都不要使用=(。您可以在android块中指定buildToolsVersion "29.0.2"，也可以省略它，gradle 将根据指定targetSdkVersion自动使用最新版本