每当我在保持模拟器运行的同时运行react native run android时，我都会收到这个错误react本机运行ioswroks完全正常。
Error: Command failed: ./gradlew app:installDebug -PreactNativeDevServerPort=8081
:ReactNative:Failed to parse React Native CLI configuration: groovy.json.JsonException: Unable to determine the current character, it is not a string, number, array, or object
The current character read is 'E' with an int value of 69
Unable to determine the current character, it is not a string, number, array, or object
line number 1
index number 0
Error: Invalid attribute nameLine: 16Column: 18Char: . at error (/Users/yashatreya/Desktop/Realyze/Realyze/node_modules/sax/lib/sax.js:651:10) at strictFail (/Users/yashatreya/Desktop/Realyze/Realyze/node_modules/sax/lib/sax.js:677:7) at SAXParser.write (/Users/yashatreya/Desktop/Realyze/Realyze/node_modules/sax/lib/sax.js:1313:13) at new XmlDocument (/Users/yashatreya/Desktop/Realyze/Realyze/node_modules/xmldoc/lib/xmldoc.js:261:15) at readManifest (/Users/yashatreya/Desktop/Realyze/Realyze/node_modules/@react-native-community/cli-platform-android/build/config/readManifest.js:38:10) at Object.projectConfig (/Users/yashatreya/Desktop/Realyze/Realyze/node_modules/@react-native-community/cli-platform-android/build/config/index.js:59:46) at Object.get project [as project] (/Users/yashatreya/Desktop/Realyze/Realyze/node_modules/react-native/node_modules/@react-native-community/cli/build/tools/config/index.js:114:50) at /Users/yashatreya/Desktop/Realyze/Realyze/node_modules/react-native/node_modules/@react-native-community/cli/build/commands/config/config.js:8:452 at Array.forEach (<anonymous>) at _objectSpread (/Users/yashatreya/Desktop/Realyze/Realyze/node_modules/react-native/node_modules/@react-native-community/cli/build/commands/config/config.js:8:392)
^
FAILURE: Build failed with an exception.
* Where:
Script '/Users/yashatreya/Desktop/Realyze/Realyze/node_modules/@react-native-community/cli-platform-android/native_modules.gradle' line: 201
* What went wrong:
A problem occurred evaluating script.
> Failed to parse React Native CLI configuration. Expected running 'npx --quiet --no-install react-native config' command from '/Users/yashatreya/Desktop/Realyze/Realyze' directory to output valid JSON, but it didn't. This may be caused by npx resolving to a legacy global react-native binary. Please make sure to uninstall any global 'react-native' binaries: 'npm uninstall -g react-native react-native-cli' and try again
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
如错误消息中所示，我尝试运行npm uninstall -g react-native react-native-cli，但它不起作用。
关于我的环境的信息：
System:
OS: macOS 10.15
CPU: (4) x64 Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
Memory: 29.68 MB / 8.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 12.13.0 - /usr/local/bin/node
Yarn: 1.19.1 - /usr/local/bin/yarn
npm: 6.12.0 - /usr/local/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
SDKs:
iOS SDK:
Platforms: iOS 13.0, DriverKit 19.0, macOS 10.15, tvOS 13.0, watchOS 6.0
IDEs:
Android Studio: 3.5 AI-191.8026.42.35.5977832
Xcode: 11.0/11A420a - /usr/bin/xcodebuild
npmPackages:
react: 16.9.0 => 16.9.0
react-native: ^0.61.4 => 0.61.4
npmGlobalPackages:
react-native-cli: 2.0.1
下面的android/app/build.gradle：
apply plugin: "com.android.application"
import com.android.build.OutputFile
project.ext.react = [
entryFile: "index.js",
enableHermes: false, // clean and rebuild if changing
]
apply from: "../../node_modules/react-native/react.gradle"
def enableSeparateBuildPerCPUArchitecture = false
def enableProguardInReleaseBuilds = false
def jscFlavor = 'org.webkit:android-jsc:+'
def enableHermes = project.ext.react.get("enableHermes", false);
android {
compileSdkVersion rootProject.ext.compileSdkVersion
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
defaultConfig {
applicationId "com.realyze"
minSdkVersion 21
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 1
versionName "1.0"
multiDexEnabled true
}
// rootProject.ext.minSdkVersion
splits {
abi {
reset()
enable enableSeparateBuildPerCPUArchitecture
universalApk false // If true, also generate a universal APK
include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
}
}
signingConfigs {
debug {
storeFile file('debug.keystore')
storePassword 'android'
keyAlias 'androiddebugkey'
keyPassword 'android'
}
}
buildTypes {
debug {
signingConfig signingConfigs.debug
}
release {
// Caution! In production, you need to generate your own keystore file.
// see https://facebook.github.io/react-native/docs/signed-apk-android.
signingConfig signingConfigs.debug
minifyEnabled enableProguardInReleaseBuilds
proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
}
}
// applicationVariants are e.g. debug, release
applicationVariants.all { variant ->
variant.outputs.each { output ->
// For each separate APK per architecture, set a unique version code as described here:
// https://developer.android.com/studio/build/configure-apk-splits.html
def versionCodes = ["armeabi-v7a": 1, "x86": 2, "arm64-v8a": 3, "x86_64": 4]
def abi = output.getFilter(OutputFile.ABI)
if (abi != null) { // null for the universal-debug, universal-release variants
output.versionCodeOverride =
versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
}
}
}
}
dependencies {
implementation project(':react-native-push-notification')
implementation project(':react-native-sound')
implementation project(':react-native-audio')
implementation 'com.android.support:multidex:2.0.1'
implementation project(':react-native-gesture-handler')
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation "com.facebook.react:react-native:+" // From node_modules
implementation 'androidx.appcompat:appcompat:1.1.0-rc01'
implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0-alpha02'
implementation 'com.google.firebase:firebase-analytics:17.2.0'
implementation 'com.google.firebase:firebase-auth:19.1.0'
implementation project(path: ":@react-native-firebase_auth")
implementation project(path: ":@react-native-firebase_messaging")
implementation project(path: ":@react-native-firebase_database")
implementation project(':react-native-datetimepicker')
implementation project(path: ":@react-native-firebase_firestore")
implementation project(path: ":@react-native-firebase_functions")
}
if (enableHermes) {
def hermesPath = "../../node_modules/hermes-engine/android/";
debugImplementation files(hermesPath + "hermes-debug.aar")
releaseImplementation files(hermesPath + "hermes-release.aar")
} else {
implementation jscFlavor
}
// }
// Run this once to be able to run the application with BUCK
// puts all compile dependencies into folder libs for BUCK to use
task copyDownloadableDepsToLibs(type: Copy) {
from configurations.compile
into 'libs'
}
apply from: file("../../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesAppBuildGradle(project)
apply plugin: 'com.google.gms.google-services'
android/build.gradle如下：
buildscript {
ext {
buildToolsVersion = "28.0.3"
minSdkVersion = 16
compileSdkVersion = 28
targetSdkVersion = 28
}
repositories {
google()
jcenter()
}
dependencies {
classpath "com.android.tools.build:gradle:3.4.2"
classpath 'com.google.gms:google-services:4.3.2'
}
}
allprojects {
repositories {
mavenLocal()
maven {
// All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
url("$rootDir/../node_modules/react-native/android")
}
maven {
// Android JSC is installed from npm
url("$rootDir/../node_modules/jsc-android/dist")
}
google()
jcenter()
maven { url 'https://jitpack.io' }
}
}
最初我得到的错误是：react本机构建错误：在项目'；上找不到参数[jscFlavor]的方法implementation((：应用程序'；属于org.gradle.api.Project类型，但现在我得到了上面的内容。
解决方案1(对我有用(
对我来说，解决方案是删除以下行
apply from: file("../../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesAppBuildGradle(project)
一定要把它移到任何地方。我在build.gradle(应用程序(和设置.gradle中都有这行代码。
之后，再次运行npx react native run android控制台将显示真正的错误，修复错误并放回您删除的行。
在我的情况下，错误发生了，因为我一直在使用旧的Node版本，第二次发生时，我需要再次同步我的项目
溶液2
删除它发现错误的文件，因为"当前读取的字符是'E'，int值为69">
删除
appbuildintermediatessigning_configdebugoutsigning-config.json
也为他人工作。
解决方案3
将@react native community/cli更新到最新版本。
良好的编码
这对我很有效：在my_flavor/AndroidManifest.xml中，在manifest标记中只添加package="com.my_package_name"：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.my_package_name" // <<added
xmlns:tools="http://schemas.android.com/tools">
<uses-permission
...
</manifest>
删除android/app/release对我有效。
我认为这个问题只出现在新版本(0.61(中。我遇到了同样的问题，我只是使用了旧版本(0.60.0(
npx react-native init AwesomeProject --version 0.60.0
刚刚删除了android内部的构建文件夹，转到android文件夹，然后在powershell中键入./gradlew clean，然后键入cd..=>npx react-native run-android
请确保AndroidManifest.xml数据使用正确的引号"not"。当我们配置firebase并复制粘贴依赖项时，通常会发生这种情况。
删除node_modules文件夹并再次运行npm install对我的有效
检查您的androidmanifest.xml，该文件中会出现一些问题。。
在我的例子中，我编辑了androidmanifest.xml，这就是为什么我会出现这个错误，并通过将androidmanifest.xml的编辑代码放在前面来解决这个错误。
谢谢：(
在项目文件夹中执行以下步骤
cd android./gradlew cleancd ..npm installreact-native run-android
首先，您应该尝试关闭模拟器。在windows中，当我尝试使用运行模拟器进行构建时，出现了此错误。
也许您的npm(节点(服务器正在启动。如果服务器正在启动，请关闭它。
删除node_modules文件夹并再次运行npm install，对我来说很有效！
对我来说，在Cygwin下，问题出现在应用程序的顶级目录(位于android之上，位于node_modules旁边(中一个名为app的符号链接上，该链接指向它所在的完整路径(例如/cygdrive/c/files/app(。它是在我开始构建的时候创建的。删除后，问题得到了解决。
因为问题是我的AndroidManifest有错误。有两个"；应用"；标签。通过修复清单，我能够解决这个问题。