react-native版本：0.57.1
这个问题原本不是rn版本的问题，原因是0.57.1将Android SDK的版本更新到27了。
先来看下错误日志：
> Task :app:preReleaseBuild FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Could not resolve all files for configuration ':app:releaseCompileClasspath'.
> Could not find support-vector-drawable.aar (com.android.support:support-vector-drawable:27.1.1).
Searched in the following locations:
https://jcenter.bintray.com/com/android/support/support-vector-drawable/27.1.1/support-vector-drawable-27.1.1.aar
> Could not find livedata-core.aar (android.arch.lifecycle:livedata-core:1.1.0).
Searched in the following locations:
https://jcenter.bintray.com/android/arch/lifecycle/livedata-core/1.1.0/livedata-core-1.1.0.aar
> Could not find viewmodel.aar (android.arch.lifecycle:viewmodel:1.1.0).
Searched in the following locations:
https://jcenter.bintray.com/android/arch/lifecycle/viewmodel/1.1.0/viewmodel-1.1.0.aar
> Could not find runtime.aar (android.arch.core:runtime:1.1.0).
Searched in the following locations:
https://jcenter.bintray.com/android/arch/core/runtime/1.1.0/runtime-1.1.0.aar
* 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
Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.10.1/userguide/command_line_interface.html#sec:command_line_warnings
BUILD FAILED in 14s
11 actionable tasks: 1 executed, 10 up-to-date
这个是只有打包apk时才会出现的错误，需要注意两个地方来确定你的错误和我遇到的是同一类错误：
1.":app:releaseCompileClasspath"；
2."com.android.support:support-vector-drawable:27.1.1"。
解决方案：
1.修改android/build.gradle中google()方法的位置，见下方代码注释；
2.如果还不行，就升级gradle版本到4.10.1（我使用的版本，不确定别的版本是否可用）。
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext {
buildToolsVersion = "27.0.3"
minSdkVersion = 16
compileSdkVersion = 27
targetSdkVersion = 26
supportLibVersion = "27.1.1"
}
repositories {
google()
jcenter()
maven {
url 'https://maven.google.com/'
name 'Google'
}
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.4'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google() // new
mavenLocal()
jcenter()
maven {url "https://jitpack.io"}
maven {
// All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
url "$rootDir/../node_modules/react-native/android"
}
maven {url "https://maven.google.com"}
// google() // old
}
}
task wrapper(type: Wrapper) {
gradleVersion = '4.10.1'
distributionUrl = distributionUrl.replace("bin", "all")
}
