我创建了一个简单的React-Native项目,并尝试将其导入Android Studio IDE。问题是构建过程失败并出现以下两个错误:
为解决第一个错误,我在项目级别的build.gradle文件中将appcompat版本更改为27.0.2,在此文件中,我之前的本机android应用程序已成功构建。但是使用此API版本会抛出相同的错误。在下面的build.gradle文件已附加,以查看是否有问题。
(build.gradle) --> project level
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
maven {
url 'https://maven.google.com/'
name 'Google'
}
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.3'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
mavenLocal()
jcenter()
maven {
url 'https://maven.google.com/'
name 'Google'
}
}
}
ext {
buildToolsVersion = "27.0.2"
minSdkVersion = 16
compileSdkVersion = 27
targetSdkVersion = 27
supportLibVersion = "27.0.2"
}
这是模块级别的build.gradle。
project.ext.react = [
entryFile: "index.js"
]
apply from: "../../node_modules/react-native/react.gradle"
def enableSeparateBuildPerCPUArchitecture = false
def enableProguardInReleaseBuilds = false
android {
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion
defaultConfig {
applicationId "com.sampleproj"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 1
versionName "1.0"
ndk {
abiFilters "armeabi-v7a", "x86"
}
}
splits {
abi {
reset()
enable enableSeparateBuildPerCPUArchitecture
universalApk false // If true, also generate a universal APK
include "armeabi-v7a", "x86"
}
}
buildTypes {
release {
minifyEnabled enableProguardInReleaseBuilds
proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
}
}
applicationVariants.all { variant ->
variant.outputs.each { output ->
def versionCodes = ["armeabi-v7a":1, "x86":2]
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 {
compile fileTree(dir: "libs", include: ["*.jar"])
compile "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
compile "com.facebook.react:react-native:+" // From node_modules
}
task copyDownloadableDepsToLibs(type: Copy) {
from configurations.compile
into 'libs'
}
我该如何解决这些问题?
答案 0 :(得分:0)
我找到了解决这些问题的步骤。
在项目级别的build.gradle中将此代码行添加到repositoreis部分:
maven {
url "$rootDir/../node_modules/react-native/android"
}
第一步使构建过程成功,但在模拟器或物理设备上运行时会显示红色屏幕,其中指出:无法从资产index.android.bundle加载脚本。要解决此问题,请遵循instructions。
npm安装
(package.json)
"babel-preset-react-native": "^4.0.0"
并非所有人都需要执行所有步骤,但是当我遇到错误时,此过程可以帮助我解决它们。