我有一个Ionic 3应用程序。从过去几天开始，该应用程序编译成功，但在设备中打开之前崩溃。在模拟器上，它运行良好。
发生此错误：
java.lang.RuntimeException: Unable to instantiate application androidx.multidex.MultiDexApplication: java.lang.ClassNotFoundException: Didn't find class "androidx.multidex.MultiDexApplication" on path: DexPathList[[zip file "/data/app/com.hip.app-_pUW6ZegoL_8FtN7BFysGw==/base.apk"],nativeLibraryDirectories=[/data/app/com.hip.app-_pUW6ZegoL_8FtN7BFysGw==/lib/arm64, /system/lib64]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:1073)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:5992)
at android.app.ActivityThread.access$1200(ActivityThread.java:206)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1686)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:201)
at android.app.ActivityThread.main(ActivityThread.java:6882)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
Caused by: java.lang.ClassNotFoundException: Didn't find class "androidx.multidex.MultiDexApplication" on path: DexPathList[[zip file "/data/app/com.hip.app-_pUW6ZegoL_8FtN7BFysGw==/base.apk"],nativeLibraryDirectories=[/data/app/com.hip.app-_pUW6ZegoL_8FtN7BFysGw==/lib/arm64, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:171)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at android.app.AppComponentFactory.instantiateApplication(AppComponentFactory.java:50)
at android.app.Instrumentation.newApplication(Instrumentation.java:1121)
at android.app.LoadedApk.makeApplication(LoadedApk.java:1065)
... 9 more
我的项目属性
target=android-28
android.library.reference.1=CordovaLib
android.library.reference.2=app
cordova.system.library.1=androidx.annotation:annotation:1.0.0
cordova.gradle.include.1=branch-cordova-sdk/app-rules.gradle
cordova.gradle.include.2=cordova-plugin-firebase-lib/app-build.gradle
cordova.system.library.2=com.google.android.gms:play-services-tagmanager:16.+
cordova.system.library.3=com.google.firebase:firebase-auth:18.+
cordova.system.library.4=com.google.firebase:firebase-core:17.+
cordova.system.library.5=com.google.firebase:firebase-messaging:19.+
cordova.system.library.6=com.google.firebase:firebase-config:18.+
cordova.system.library.7=com.google.firebase:firebase-perf:18.+
和
MY build.gradle
buildscript {
repositories {
google()
jcenter()
maven { url 'https://maven.fabric.io/public' } // Fabrics Maven repository from cordova-plugin-firebase-lib
}
dependencies {
classpath 'com.android.tools.build:gradle:3.3.0'
classpath 'com.google.gms:google-services:4.2.0' // google-services dependency from cordova-plugin-firebase-lib
classpath 'io.fabric.tools:gradle:1.25.4' // fabric dependency from cordova-plugin-firebase-lib
}
}
allprojects {
repositories {
google()
jcenter()
google() // Google's Maven repository from cordova-plugin-firebase-lib
}
project.ext {
defaultBuildToolsVersion="28.0.3"
defaultMinSdkVersion=21
defaultTargetSdkVersion=28
defaultCompileSdkVersion=28
}
}
(模块：app(app/build.gradle:
apply plugin: 'com.android.application'
buildscript {
repositories {
mavenCentral()
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.3.0'
}
}
// Allow plugins to declare Maven dependencies via build-extras.gradle.
allprojects {
repositories {
mavenCentral()
jcenter()
}
}
task wrapper(type: Wrapper) {
gradleVersion = '4.10.3'
}
// Configuration properties. Set these via environment variables, build-extras.gradle, or gradle.properties.
// Refer to: http://www.gradle.org/docs/current/userguide/tutorial_this_and_that.html
ext {
apply from: '../CordovaLib/cordova.gradle'
// The value for android.compileSdkVersion.
if (!project.hasProperty('cdvCompileSdkVersion')) {
cdvCompileSdkVersion = null;
}
// The value for android.buildToolsVersion.
if (!project.hasProperty('cdvBuildToolsVersion')) {
cdvBuildToolsVersion = null;
}
// Sets the versionCode to the given value.
if (!project.hasProperty('cdvVersionCode')) {
cdvVersionCode = null
}
// Sets the minSdkVersion to the given value.
if (!project.hasProperty('cdvMinSdkVersion')) {
cdvMinSdkVersion = null
}
// Whether to build architecture-specific APKs.
if (!project.hasProperty('cdvBuildMultipleApks')) {
cdvBuildMultipleApks = null
}
// Whether to append a 0 "abi digit" to versionCode when only a single APK is build
if (!project.hasProperty('cdvVersionCodeForceAbiDigit')) {
cdvVersionCodeForceAbiDigit = null
}
// .properties files to use for release signing.
if (!project.hasProperty('cdvReleaseSigningPropertiesFile')) {
cdvReleaseSigningPropertiesFile = null
}
// .properties files to use for debug signing.
if (!project.hasProperty('cdvDebugSigningPropertiesFile')) {
cdvDebugSigningPropertiesFile = null
}
// Set by build.js script.
if (!project.hasProperty('cdvBuildArch')) {
cdvBuildArch = null
}
// Plugin gradle extensions can append to this to have code run at the end.
cdvPluginPostBuildExtras = []
}
// PLUGIN GRADLE EXTENSIONS START
apply from: "../branch-cordova-sdk/app-rules.gradle"
apply from: "../cordova-plugin-firebase-lib/app-build.gradle"
// PLUGIN GRADLE EXTENSIONS END
def hasBuildExtras1 = file('build-extras.gradle').exists()
if (hasBuildExtras1) {
apply from: 'build-extras.gradle'
}
def hasBuildExtras2 = file('../build-extras.gradle').exists()
if (hasBuildExtras2) {
apply from: '../build-extras.gradle'
}
// Set property defaults after extension .gradle files.
if (ext.cdvCompileSdkVersion == null) {
ext.cdvCompileSdkVersion = privateHelpers.getProjectTarget()
//ext.cdvCompileSdkVersion = project.ext.defaultCompileSdkVersion
}
if (ext.cdvBuildToolsVersion == null) {
ext.cdvBuildToolsVersion = privateHelpers.findLatestInstalledBuildTools()
//ext.cdvBuildToolsVersion = project.ext.defaultBuildToolsVersion
}
if (ext.cdvDebugSigningPropertiesFile == null && file('../debug-signing.properties').exists()) {
ext.cdvDebugSigningPropertiesFile = '../debug-signing.properties'
}
if (ext.cdvReleaseSigningPropertiesFile == null && file('../release-signing.properties').exists()) {
ext.cdvReleaseSigningPropertiesFile = '../release-signing.properties'
}
// Cast to appropriate types.
ext.cdvBuildMultipleApks = cdvBuildMultipleApks == null ? false : cdvBuildMultipleApks.toBoolean();
ext.cdvVersionCodeForceAbiDigit = cdvVersionCodeForceAbiDigit == null ? false : cdvVersionCodeForceAbiDigit.toBoolean();
ext.cdvMinSdkVersion = cdvMinSdkVersion == null ? defaultMinSdkVersion : Integer.parseInt('' + cdvMinSdkVersion)
ext.cdvVersionCode = cdvVersionCode == null ? null : Integer.parseInt('' + cdvVersionCode)
def computeBuildTargetName(debugBuild) {
def ret = 'assemble'
if (cdvBuildMultipleApks && cdvBuildArch) {
def arch = cdvBuildArch == 'arm' ? 'armv7' : cdvBuildArch
ret += '' + arch.toUpperCase().charAt(0) + arch.substring(1);
}
return ret + (debugBuild ? 'Debug' : 'Release')
}
// Make cdvBuild a task that depends on the debug/arch-sepecific task.
task cdvBuildDebug
cdvBuildDebug.dependsOn {
return computeBuildTargetName(true)
}
task cdvBuildRelease
cdvBuildRelease.dependsOn {
return computeBuildTargetName(false)
}
task cdvPrintProps {
doLast {
println('cdvCompileSdkVersion=' + cdvCompileSdkVersion)
println('cdvBuildToolsVersion=' + cdvBuildToolsVersion)
println('cdvVersionCode=' + cdvVersionCode)
println('cdvVersionCodeForceAbiDigit=' + cdvVersionCodeForceAbiDigit)
println('cdvMinSdkVersion=' + cdvMinSdkVersion)
println('cdvBuildMultipleApks=' + cdvBuildMultipleApks)
println('cdvReleaseSigningPropertiesFile=' + cdvReleaseSigningPropertiesFile)
println('cdvDebugSigningPropertiesFile=' + cdvDebugSigningPropertiesFile)
println('cdvBuildArch=' + cdvBuildArch)
println('computedVersionCode=' + android.defaultConfig.versionCode)
android.productFlavors.each { flavor ->
println('computed' + flavor.name.capitalize() + 'VersionCode=' + flavor.versionCode)
}
}
}
android {
defaultConfig {
multiDexEnabled true
versionCode cdvVersionCode ?: new BigInteger("" + privateHelpers.extractIntFromManifest("versionCode"))
applicationId privateHelpers.extractStringFromManifest("package")
minSdkVersion 19
if (cdvMinSdkVersion != null) {
minSdkVersion cdvMinSdkVersion
}
}
lintOptions {
abortOnError false;
}
compileSdkVersion cdvCompileSdkVersion
buildToolsVersion cdvBuildToolsVersion
// This code exists for Crosswalk and other Native APIs.
// By default, we multiply the existing version code in the
// Android Manifest by 10 and add a number for each architecture.
// If you are not using Crosswalk or SQLite, you can
// ignore this chunk of code, and your version codes will be respected.
if (Boolean.valueOf(cdvBuildMultipleApks)) {
flavorDimensions "default"
productFlavors {
armeabi {
versionCode defaultConfig.versionCode*10 + 1
ndk {
abiFilters = ["armeabi"]
}
}
armv7 {
versionCode defaultConfig.versionCode*10 + 2
ndk {
abiFilters = ["armeabi-v7a"]
}
}
arm64 {
versionCode defaultConfig.versionCode*10 + 3
ndk {
abiFilters = ["arm64-v8a"]
}
}
x86 {
versionCode defaultConfig.versionCode*10 + 4
ndk {
abiFilters = ["x86"]
}
}
x86_64 {
versionCode defaultConfig.versionCode*10 + 5
ndk {
abiFilters = ["x86_64"]
}
}
}
} else if (Boolean.valueOf(cdvVersionCodeForceAbiDigit)) {
// This provides compatibility to the default logic for versionCode before cordova-android 5.2.0
defaultConfig {
versionCode defaultConfig.versionCode*10
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
if (cdvReleaseSigningPropertiesFile) {
signingConfigs {
release {
// These must be set or Gradle will complain (even if they are overridden).
keyAlias = ""
keyPassword = "__unset" // And these must be set to non-empty in order to have the signing step added to the task graph.
storeFile = null
storePassword = "__unset"
}
}
buildTypes {
release {
signingConfig signingConfigs.release
}
}
addSigningProps(cdvReleaseSigningPropertiesFile, signingConfigs.release)
}
if (cdvDebugSigningPropertiesFile) {
addSigningProps(cdvDebugSigningPropertiesFile, signingConfigs.debug)
}
}
/*
* WARNING: Cordova Lib and platform scripts do management inside of this code here,
* if you are adding the dependencies manually, do so outside the comments, otherwise
* the Cordova tools will overwrite them
*/
dependencies {
implementation fileTree(dir: 'libs', include: '*.jar')
// SUB-PROJECT DEPENDENCIES START
implementation(project(path: ":CordovaLib"))
implementation "androidx.annotation:annotation:1.0.0"
implementation "com.google.android.gms:play-services-tagmanager:16.+"
implementation "com.google.firebase:firebase-auth:18.+"
implementation "com.google.firebase:firebase-core:17.+"
implementation "com.google.firebase:firebase-messaging:19.+"
implementation "com.google.firebase:firebase-config:18.+"
implementation "com.google.firebase:firebase-perf:18.+"
// SUB-PROJECT DEPENDENCIES END
}
def promptForReleaseKeyPassword() {
if (!cdvReleaseSigningPropertiesFile) {
return;
}
if ('__unset'.equals(android.signingConfigs.release.storePassword)) {
android.signingConfigs.release.storePassword = privateHelpers.promptForPassword('Enter key store password: ')
}
if ('__unset'.equals(android.signingConfigs.release.keyPassword)) {
android.signingConfigs.release.keyPassword = privateHelpers.promptForPassword('Enter key password: ');
}
}
gradle.taskGraph.whenReady { taskGraph ->
taskGraph.getAllTasks().each() { task ->
if(['validateReleaseSigning', 'validateSigningRelease', 'validateSigningArmv7Release', 'validateSigningX76Release'].contains(task.name)) {
promptForReleaseKeyPassword()
}
}
}
def addSigningProps(propsFilePath, signingConfig) {
def propsFile = file(propsFilePath)
def props = new Properties()
propsFile.withReader { reader ->
props.load(reader)
}
def storeFile = new File(props.get('key.store') ?: privateHelpers.ensureValueExists(propsFilePath, props, 'storeFile'))
if (!storeFile.isAbsolute()) {
storeFile = RelativePath.parse(true, storeFile.toString()).getFile(propsFile.getParentFile())
}
if (!storeFile.exists()) {
throw new FileNotFoundException('Keystore file does not exist: ' + storeFile.getAbsolutePath())
}
signingConfig.keyAlias = props.get('key.alias') ?: privateHelpers.ensureValueExists(propsFilePath, props, 'keyAlias')
signingConfig.keyPassword = props.get('keyPassword', props.get('key.alias.password', signingConfig.keyPassword))
signingConfig.storeFile = storeFile
signingConfig.storePassword = props.get('storePassword', props.get('key.store.password', signingConfig.storePassword))
def storeType = props.get('storeType', props.get('key.store.type', ''))
if (!storeType) {
def filename = storeFile.getName().toLowerCase();
if (filename.endsWith('.p12') || filename.endsWith('.pfx')) {
storeType = 'pkcs12'
} else {
storeType = signingConfig.storeType // "jks"
}
}
signingConfig.storeType = storeType
}
for (def func : cdvPluginPostBuildExtras) {
func()
}
// This can be defined within build-extras.gradle as:
// ext.postBuildExtras = { ... code here ... }
if (hasProperty('postBuildExtras')) {
postBuildExtras()
}
我正在使用命令行创建和签署构建，但我也尝试过：
在安卓工作室中打开并同步项目
清洁项目
重建项目
我已通过从项目中删除MultiDex并将minSdkVersion升级到21来解决此问题。