相关疑难解决方法(0)

我将gradle插件更新为最新版本:com.android.tools.build:gradle:3.0.0-alpha1 发生此错误:

export TERM="dumb"
if [ -e ./gradlew ]; then ./gradlew test;else gradle test;fi

FAILURE: Build failed with an exception.

What went wrong:
    A problem occurred configuring root project 'Android-app'. Could not
 resolve all dependencies for configuration ':classpath'. Could not
 find com.android.tools.build:gradle:3.0.0-alpha1. Searched in the
 following locations:
 https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.0-alpha1/gradle-3.0.0-alpha1.pom
 https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.0-alpha1/gradle-3.0.0-alpha1.jar
 Required by:

当前的circle.yml

dependencies:
   pre:
      - mkdir -p $ANDROID_HOME"/licenses"
      - echo $ANDROID_SDK_LICENSE > $ANDROID_HOME"/licenses/android-sdk-license"
      - source environmentSetup.sh && get_android_sdk_25

   cache_directories:
    - /usr/local/android-sdk-linux
    - ~/.android
    - ~/.gradle
   override:
    - ./gradlew dependencies …

在Android Studio 3.0 Canary 1上构建默认项目(黑色模板)时,我收到以下错误.

The android gradle plugin version 3.0.0-alpha1 is too old, please update to the latest version. To override this check from the command line please set the 
ANDROID_DAILY_OVERRIDE environment variable to "d27b293f4c7c48dfe922ba160164f3fa511cb3b9" 
Upgrade plugin to version 3.0.0-alpha1 and sync project Open File

默认设置有什么问题？