: It surely comes on the example, as I got this problem all times I get the : example, and I have to remove the file multicore.xml or I get the error.
something is wrong then. if yo uare runing "java -jar start.jar" in the "example" directory then "example/solr" will be used as your solr home directory, and it has no multicore configuration files. the directory "example/multicore" does contain a multicore.xml file, and if you use that directory as your Solr Home then Solr will see that file and go into "MultiCore" -- but you you shouldn't have to remove that multicore.xml file unless you are explicitly using "example/multicore". If you are seeing differnet behavior, can you descibe in more details what steps you are taking (from a clean checkout) and why you think multicore.xml is getting used when you do those steps? -Hoss
