1 Could not GET ‘https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom‘. Received status code 400 from server: Bad Request
1.1 参考网址
https://discuss.gradle.org/t/android-studio-could-not-get-resource-https-dl-google-com-dl-android-maven2-com-android-tools-build-gradle-3-1-0-gradle-3-1-0-pom/26734
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Unable to resolve dependency for ‘:app@debug/compileClasspath‘: Could not resolve com.android.support.constraint:constraint-layout:1.1.0.
原文：https://www.cnblogs.com/ncgds/p/10055894.html