背景
想学习一下别人的成型项目FastHub，结果build失败，gradle信息如下：
Executing tasks: [assemble] Configuration on demand is an incubating feature. FAILURE: Build failed with an exception. * What went wrong: A problem occurred configuring root project 'FastHub'. > Could not resolve all files for configuration ':classpath'. > Could not resolve com.android.tools.build:gradle:3.2.0-alpha04. Required by: project : > Could not resolve com.android.tools.build:gradle:3.2.0-alpha04. > Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0-alpha04/gradle-3.2.0-alpha04.pom'. > Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0-alpha04/gradle-3.2.0-alpha04.pom'. > Connect to dl.google.com:443 [dl.google.com/2404:6800:4008:c01:0:0:0:88] failed: Connection timed out: connect > Could not resolve com.android.tools.build:gradle:3.2.0-alpha04. Required by: project : > com.apollographql.apollo:gradle-plugin:0.4.1 > Could not resolve com.android.tools.build:gradle:3.2.0-alpha04. > Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0-alpha04/gradle-3.2.0-alpha04.pom'. > Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0-alpha04/gradle-3.2.0-alpha04.pom'. > Connect to dl.google.com:443 [dl.google.com/2404:6800:4008:c01:0:0:0:88] failed: Connection timed out: connect * 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 BUILD FAILED in 3m 18s
首先在
设置>proxy里使用系统默认代理，check connection 使用'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0-alpha04/gradle-3.2.0-alpha04.pom'完美通过，心想应该不是proxy的问题。可就是build失败，提示要么Connection timed out，要么unknown host: dl.google.com，简直逼疯。最后参考了一下，死马当活马医，在参考的文章里找到了解决方案。（我参考的不只下面的3个参考页面，开了一大堆csdn、StackOverflow、github issue的相关网页，都没解决，这3个是我解决时的参考，所以放这里了）解决
在项目目录下新建文件
gradle.properties:## Project-wide Gradle settings. # # For more details on how to configure your build environment visit # http://www.gradle.org/docs/current/userguide/build_environment.html # # Specifies the JVM arguments used for the daemon process. # The setting is particularly useful for tweaking memory settings. # Default value: -Xmx1024m -XX:MaxPermSize=256m # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 # # When configured, Gradle will run in incubating parallel mode. # This option should only be used with decoupled projects. More details, visit # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects # org.gradle.parallel=true #Fri Mar 09 22:26:51 CST 2018 systemProp.https.proxyPort=1080 systemProp.http.proxyHost=127.0.0.1 systemProp.https.proxyHost=127.0.0.1 systemProp.http.proxyPort=1080
内容意思是使用本地127.0.0.1:8000端口进行代理。
注意：
-
gradle.properties与app文件夹同级，而不是在app文件夹内。- 记得把
shadowsocks挂到1080端口，之前的check connection没卵用。