Question

我目前正在尝试为Android模拟（然后构建）和Ionic App（w / Angular）。我觉得有必要通过说而不是一个Android开发人员来说明这一点，这是我第一次设置环境所以我为任何“明显的”错误或错过的步骤道歉。 / p>

我无法解决此错误（在运行Router.js:100 Uncaught TypeError: Cannot read property 'Component' of undefined at eval (Router.js:100) at Object../node_modules/react-router/es/Router.js (client-2bb593ab57065d662f04.bundle.js:2713) at r (client-2bb593ab57065d662f04.bundle.js:1) at eval (MemoryRouter.js:10) at Object../node_modules/react-router/es/MemoryRouter.js (client-2bb593ab57065d662f04.bundle.js:2697) at r (client-2bb593ab57065d662f04.bundle.js:1) at eval (index.js:2) at Object../node_modules/react-router/es/index.js (client-2bb593ab57065d662f04.bundle.js:2725) at r (client-2bb593ab57065d662f04.bundle.js:1) at eval (index.jsx:15)后显示）：

ionic cordova emulate android --debug --consolelogs

当我尝试构建项目或同步Gradle时，我在Android Studio中收到类似的消息：

BUILD FAILED

Total time: 0.794 secs
[11:12:25]  lint finished in 1.74 s 
Error: /path/to/app/platforms/android/gradlew: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.

* Where:
Build file '/path/to/app/platforms/android/build.gradle' line: 24

* What went wrong:
A problem occurred evaluating root project 'android'.
> Could not find which method maven() to invoke from this list:
public abstract org.gradle.api.artifacts.repositories.MavenArtifactRepository org.gradle.api.artifacts.dsl.RepositoryHandler#maven(groovy.lang.Closure)
public abstract org.gradle.api.artifacts.repositories.MavenArtifactRepository org.gradle.api.artifacts.dsl.RepositoryHandler#maven(org.gradle.api.Action)

Could not find which method maven() to invoke from this list: public abstract org.gradle.api.artifacts.repositories.MavenArtifactRepository org.gradle.api.artifacts.dsl.RepositoryHandler#maven(groovy.lang.Closure) public abstract org.gradle.api.artifacts.repositories.MavenArtifactRepository org.gradle.api.artifacts.dsl.RepositoryHandler#maven(org.gradle.api.Action) Open File文件中失败的行如下所示：

build.gradle

对于上下文，我有：

通过自制软件安装了Gradle和Maven，下载了Android Studio，JDK和SDK工具以及（尝试进行故障排除）。

为我的buildscript { repositories { maven () < HERE jcenter() google () } // Switch the Android Gradle plugin version requirement depending on the // installed version of Gradle. This dependency is documented at // http://tools.android.com/tech-docs/new-build-system/version-compatibility // and https://issues.apache.org/jira/browse/CB-8143 dependencies { classpath 'com.android.tools.build:gradle:4.7' } }添加了以下路径（并确认文件路径包含他们所说的内容以及匹配版本）：

.bash_profile

通过CLI sdkmanager接受所有许可条款

通过AVD Manager创建虚拟设备

运行export ANDROID_HOME=$HOME/Library/Android/sdk` export JAVA_HOME=$(/usr/libexec/java_home) export JRE_HOME=$JAVA_HOME/jre export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin export M2_HOME=/usr/local/Cellar/maven/3.5.3/libexec export M2=$M2_HOME/bin export PATH=$PATH:$M2_HOME/bin export PATH=$PATH:/opt/gradle/gradle-4.7/bin会返回以下内容：

ionic info

运行cli packages: (/Users/katesowles/.node/lib/node_modules) @ionic/cli-utils : 1.19.2 ionic (Ionic CLI) : 3.20.0 global packages: cordova (Cordova CLI) : 7.0.1 local packages: @ionic/app-scripts : 1.3.0 Cordova Platforms : android 6.2.3 browser 4.1.0 ios 4.5.4 Ionic Framework : ionic-angular 3.0.1 System: Android SDK Tools : 26.1.1 ios-deploy : 1.9.2 Node : v8.7.0 npm : 5.4.2 OS : macOS High Sierra Xcode : Xcode 9.3 Build version 9E145 Environment Variables: ANDROID_HOME : /Users/katesowles/Library/Android/sdk Misc: backend : pro返回

mvn --version

运行Apache Maven 3.5.3 (3383c37e1f9e9b3bc3df5050c29c8aff9f295297; 2018-02-24T11:49:05-08:00) Maven home: /usr/local/Cellar/maven/3.5.3/libexec Java version: 1.8.0_171, vendor: Oracle Corporation Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_171.jdk/Contents/Home/jre Default locale: en_US, platform encoding: UTF-8 OS name: "mac os x", version: "10.13.4", arch: "x86_64", family: "mac"返回

gradle --version

任何帮助我找到一条经过这个过程以及完成的成功构建的方法都会非常感激！

Answer 1

之后

apply plugin: 'com.android.application'

你应该添加：

  repositories {
        mavenCentral()
        maven {
            url "https://repository-achartengine.forge.cloudbees.com/snapshot/"
        } //  some dependency like this.
    }

如果你有认证的maven，你可以使用：

repositories {
            mavenCentral()
            maven {
               credentials {
                   username xxx
                   password xxx
               }
               url    'http://mymaven/xxxx/repositories/releases/'
            }
}

这是重要的顺序。

注意：您需要在buildscript之外定义存储库。 buildscript配置块仅为构建脚本的类路径设置存储库和依赖项，但不为应用程序设置。 see this

无法从此列表中找到要调用的maven（）方法：

1 个答案: