: I've run into this too. I don't think this needs to be documented, I : think it needs to be *fixed* -- that is, the relevant ant tasks need to : not assume these directories exist and create them if not.
There is a reason these empty directories are commited and not created on the fly by ant ... mainly because even if people don't ever use ant we want "java -jar start.jar" to work. People have argued that the build scripts should recreate them if the user forcably removes them (or if in this case: git is aparently not smart enough to preserve them) but that leads to the possibility of a person with an svn checkout manually deleting a directory, then the build file recreating it for them, and then SVN freaking out because the directoyr exists but doesn't have it's working copy info (ie: .svn subdir) "same as it ever was, same as it ever was" ... https://issues.apache.org/jira/browse/SOLR-765?focusedCommentId=12631870&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12631870 -Hoss
