When I run my gradlew script, I get the following error. How do I resolve this issue.
[root@mydocr docker]# ./gradlew build
Downloading https://services.gradle.org/distributions/gradle-2.3-bin.zip
Exception in thread "main" java.lang.RuntimeException: java.net.UnknownHostException: services.gradle.org
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:78)
at org.gradle.wrapper.Install.createDist(Install.java:44)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:126)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:55)
Caused by: java.net.UnknownHostException: opt
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at sun.net.ftp.impl.FtpClient.doConnect(FtpClient.java:957)
at sun.net.ftp.impl.FtpClient.tryConnect(FtpClient.java:917)
at sun.net.ftp.impl.FtpClient.connect(FtpClient.java:1012)
at sun.net.ftp.impl.FtpClient.connect(FtpClient.java:998)
at sun.net.www.protocol.ftp.FtpURLConnection.connect(FtpURLConnection.java:294)
at sun.net.www.protocol.ftp.FtpURLConnection.getInputStream(FtpURLConnection.java:393)
at org.gradle.wrapper.Download.downloadInternal(Download.java:56)
at org.gradle.wrapper.Download.download(Download.java:42)
at org.gradle.wrapper.Install$1.call(Install.java:57)
at org.gradle.wrapper.Install$1.call(Install.java:44)
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:65)
... 3 more
[root@mydocr docker]#