This guide details problems that may occur during the OpenWhisk build process.
Occasionally build failures occur when the JCenter repository is experiencing problems. An example of such a failure is shown below.
FAILURE: Build failed with an exception. * What went wrong: A problem occurred configuring root project 'openwhisk'. > Could not resolve all files for configuration ':classpath'. > Could not download groovy-all.jar (org.codehaus.groovy:groovy-all:2.4.7) > Could not get resource 'https://jcenter.bintray.com/org/codehaus/groovy/groovy-all/2.4.7/groovy-all-2.4.7.jar'. > Could not GET 'https://jcenter.bintray.com/org/codehaus/groovy/groovy-all/2.4.7/groovy-all-2.4.7.jar'. > Connect to akamai.bintray.com:443 [akamai.bintray.com/220.127.116.11] failed: Connection timed out (Connection timed out)
To determine if this error is indeed related to JCenter issues, check the JFrog Bintray status page.