错误信息;无法访问 class 'androidx.compose.ui.Alignment.Horizontal'。检查您的模块 classpath 是否缺少或冲突的依赖项
Error message; Cannot access class 'androidx.compose.ui.Alignment.Horizontal'. Check your module classpath for missing or conflicting dependencies
我正在使用 Jetpack Compose 制作二维码扫描器应用程序。但是当我尝试使用可组合函数 Column 时,编译器会给我这个错误:
无法访问 class 'androidx.compose.ui.Alignment.Horizontal'。检查您的模块class路径是否存在缺失或冲突的依赖关系
这是我的应用 build.gradle 应用模块:
plugins {
id 'com.android.application'
id 'kotlin-android'
}
android {
compileSdk 31
defaultConfig {
applicationId "com.plcoding.qrcodescannercompose"
minSdk 26
targetSdk 31
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
vectorDrawables {
useSupportLibrary true
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
useIR = true
}
buildFeatures {
compose true
}
composeOptions {
kotlinCompilerExtensionVersion compose_version
kotlinCompilerVersion '1.5.21'
}
packagingOptions {
resources {
excludes += '/META-INF/{AL2.0,LGPL2.1}'
}
}
}
dependencies {
implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.appcompat:appcompat:1.4.1'
implementation 'com.google.android.material:material:1.5.0'
implementation "androidx.compose.ui:ui:$compose_version"
// Foundation (Border, Background, Box, Image, Scroll, shapes, animations, etc.)
implementation("androidx.compose.foundation:foundation:1.0.5")
implementation "androidx.compose.material:material:$compose_version"
implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.4.0'
implementation 'androidx.activity:activity-compose:1.4.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
// Activity Compose
implementation "androidx.activity:activity-compose:1.4.0"
// CameraX
implementation "androidx.camera:camera-camera2:1.0.2"
implementation "androidx.camera:camera-lifecycle:1.0.2"
implementation "androidx.camera:camera-view:1.1.0-beta01"
// Zxing
implementation 'com.google.zxing:core:3.3.3'
}
更新:这是产生错误的代码:
我不知道这条错误消息在说什么,也不知道如何解决?
确保将您的 Compose 版本升级到最新的稳定版本 1.1.0-rc03
如果您的项目包含多个模块,请确保它们都使用相同版本的 Compose。
我正在使用 Jetpack Compose 制作二维码扫描器应用程序。但是当我尝试使用可组合函数 Column 时,编译器会给我这个错误: 无法访问 class 'androidx.compose.ui.Alignment.Horizontal'。检查您的模块class路径是否存在缺失或冲突的依赖关系
这是我的应用 build.gradle 应用模块:
plugins {
id 'com.android.application'
id 'kotlin-android'
}
android {
compileSdk 31
defaultConfig {
applicationId "com.plcoding.qrcodescannercompose"
minSdk 26
targetSdk 31
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
vectorDrawables {
useSupportLibrary true
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
useIR = true
}
buildFeatures {
compose true
}
composeOptions {
kotlinCompilerExtensionVersion compose_version
kotlinCompilerVersion '1.5.21'
}
packagingOptions {
resources {
excludes += '/META-INF/{AL2.0,LGPL2.1}'
}
}
}
dependencies {
implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.appcompat:appcompat:1.4.1'
implementation 'com.google.android.material:material:1.5.0'
implementation "androidx.compose.ui:ui:$compose_version"
// Foundation (Border, Background, Box, Image, Scroll, shapes, animations, etc.)
implementation("androidx.compose.foundation:foundation:1.0.5")
implementation "androidx.compose.material:material:$compose_version"
implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.4.0'
implementation 'androidx.activity:activity-compose:1.4.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
// Activity Compose
implementation "androidx.activity:activity-compose:1.4.0"
// CameraX
implementation "androidx.camera:camera-camera2:1.0.2"
implementation "androidx.camera:camera-lifecycle:1.0.2"
implementation "androidx.camera:camera-view:1.1.0-beta01"
// Zxing
implementation 'com.google.zxing:core:3.3.3'
}
更新:这是产生错误的代码:
我不知道这条错误消息在说什么,也不知道如何解决?
确保将您的 Compose 版本升级到最新的稳定版本 1.1.0-rc03
如果您的项目包含多个模块,请确保它们都使用相同版本的 Compose。