I cloned the repo as given in https://cwiki.apache.org/confluence/display/DRILL/Contributing.
[INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 4.364s [INFO] Finished at: Wed Dec 11 01:09:06 EST 2013 [INFO] Final Memory: 17M/212M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project drill-protocol: Fatal error compiling: invalid target release: 1.7 -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn <goals> -rf :drill-protocol
