maven-release-plugin quirks... maven hell as usual

27-Oct-2013 10:51:49       [exec] [ERROR] Failed to execute goal 
org.apache.maven.plugins:maven-release-plugin:2.0:prepare (default-cli) 
on project OSBJavaCustomXPaths: Cannot prepare the release because you have local modifications :
27-Oct-2013 10:51:49       [exec] [ERROR] [build-number.txt:unknown]
27-Oct-2013 10:51:49       [exec] [ERROR] -> [Help 1]
27-Oct-2013 10:51:49       [exec] [ERROR]
27-Oct-2013 10:51:49       [exec] [ERROR] To see the full stack trace of the errors, 
re-run Maven with the -e switch.
27-Oct-2013 10:51:49       [exec] [ERROR] Re-run Maven using the -X switch to 
enable full debug logging.
27-Oct-2013 10:51:49       [exec] [ERROR]
27-Oct-2013 10:51:49       [exec] [ERROR] For more information about the errors and possible solutions,
 please read the following articles:
27-Oct-2013 10:51:49       [exec] [ERROR] [Help 1] 
http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
27-Oct-2013 10:51:49  
27-Oct-2013 10:51:49  BUILD FAILED

look no further: just add this SVN properties to your project root (trunk) folder:

svn:ignore

target
build-number.txt

The local modifications thing is just BS, ignore it.