If you run solr for the first time and try to make a core through the UI, you can get the following error:
Error CREATEing SolrCore 'new_core': Unable to create core [new_core] Caused by: Can't find resource 'solrconfig.xml' in classpath or 'D:\projects\image-annotation\solr-5.5.0\server\solr\new_coreIf you go to the properties screen, you can find out what is on the classpath: The reason you get the above error message is the source files aren't on the classpath - you can either add it, or copy all the files from here:D:\projects\image-annotation\solr-5.5.0\example\files\confTo here:
D:\projects\image-annotation\solr-5.5.0\server\resources