詳細的錯誤信息
Error:A problem occurred configuring project ':app'.
Could not resolve all dependencies for configuration ':app:classpath'.
Could not resolve io.fabric.tools:gradle:1.+.
Required by:
project :app
Could not resolve io.fabric.tools:gradle:1.+.
Failed to list versions for io.fabric.tools:gradle.
Unable to load Maven meta-data from https://maven.fabric.io/public/io/fabric/tools/gradle/maven-metadata.xml.
Could not GET 'https://maven.fabric.io/public/io/fabric/tools/gradle/maven-metadata.xml'.
Connect to 127.0.0.1:51566 [/127.0.0.1] failed: Connection refused
這個錯誤信息好像是連接到了本地，連接還被拒絕了，厲害了。。。。
經過一番谷歌，終于找到一個解決的辦法，在此記錄一下
解決
For me it worked just File->Invalidate Cache/Restart, so do Invalidate and Restart.
此文只是記錄一下遇到的問題，不喜勿噴，蟹蟹！！！！
