2.0.10 一堆JAR下不下来，其实输入连接 手动都能下，但编辑器 就是说不行，
guava-23.0.jar gson-2.8.0.jar。。。。
到这步就卡住了 ，找了半天 也没找到解决方案，对于这些问题 你们能不能 整理个专门的问题集什么的，别老让人东一头西一头的乱碰了 ， 帮帮忙 谁给看看也
- What went wrong:
A problem occurred configuring root project ‘proj.android-studio’.
Could not resolve all artifacts for configuration ‘:classpath’.
Could not download guava.jar (com.google.guava:guava:23.0)
Could not get resource ‘https://jcenter.bintray.com/com/google/guava/guava/23.0/guava-23.0.jar’.
Could not GET ‘https://jcenter.bintray.com/com/google/guava/guava/23.0/guava-23.0.jar’.
Remote host closed connection during handshake
Could not download gson.jar (com.google.code.gson:gson:2.8.0)
Could not get resource ‘https://jcenter.bintray.com/com/google/code/gson/gson/2.8.0/gson-2.8.0.jar’.
Could not GET ‘https://jcenter.bintray.com/com/google/code/gson/gson/2.8.0/gson-2.8.0.jar’.
Remote host closed connection during handshake
Could not download httpclient.jar (org.apache.httpcomponents:httpclient:4.5.2)
Could not get resource ‘https://jcenter.bintray.com/org/apache/httpcomponents/httpclient/4.5.2/httpclient-4.5.2.jar’.
Could not GET ‘https://jcenter.bintray.com/org/apache/httpcomponents/httpclient/4.5.2/httpclient-4.5.2.jar’.
Remote host closed connection during handshake
Could not download httpcore.jar (org.apache.httpcomponents:httpcore:4.4.5)
Could not get resource ‘https://jcenter.bintray.com/org/apache/httpcomponents/httpcore/4.4.5/httpcore-4.4.5.jar’.
Could not GET ‘https://jcenter.bintray.com/org/apache/httpcomponents/httpcore/4.4.5/httpcore-4.4.5.jar’.
Remote host closed connection during handshake
Could not download kotlin-stdlib.jar (org.jetbrains.kotlin:kotlin-stdlib:1.2.20)
Could not get resource ‘https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib/1.2.20/kotlin-stdlib-1.2.20.jar’.
Could not GET ‘https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-stdlib/1.2.20/kotlin-stdlib-1.2.20.jar’.
Remote host closed connection during handshake
Could not download proguard-base.jar (net.sf.proguard:proguard-base:6.0.3)
Could not get resource ‘https://jcenter.bintray.com/net/sf/proguard/proguard-base/6.0.3/proguard-base-6.0.3.jar’.
Could not GET ‘https://jcenter.bintray.com/net/sf/proguard/proguard-base/6.0.3/proguard-base-6.0.3.jar’.
Remote host closed connection during handshake
Could not download jdom2.jar (org.jdom:jdom2:2.0.6)
Could not get resource ‘https://jcenter.bintray.com/org/jdom/jdom2/2.0.6/jdom2-2.0.6.jar’.
Could not GET ‘https://jcenter.bintray.com/org/jdom/jdom2/2.0.6/jdom2-2.0.6.jar’.
Remote host closed connection during handshake
Could not download commons-codec.jar (commons-codec:commons-codec:1.9)
Could not get resource ‘https://jcenter.bintray.com/commons-codec/commons-codec/1.9/commons-codec-1.9.jar’.
Could not GET ‘https://jcenter.bintray.com/commons-codec/commons-codec/1.9/commons-codec-1.9.jar’.
Remote host closed connection during handshake