When i am trying to build my maven application on net beans IDE i am get this error, can any please help me out.

```
Checking for local modifications: skipped.
Executing: cmd.exe /X /C "svn --non-interactive update D:\server"
Working directory: D:\server
Provider message:
The svn command failed.
Command output:
'svn' is not recognized as an internal or external command,
operable program or batch file.

------------------------------------------------------------------------
BUILD FAILURE
------------------------------------------------------------------------
Total time: 2.070s
Finished at: Mon Dec 17 19:24:19 IST 2012
Final Memory: 15M/175M
------------------------------------------------------------------------
Failed to execute goal org.codehaus.mojo:buildnumber-maven-plugin:1.1:create (default) on project red5-server: Couldn't update project. Error! -> [Help 1]

To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.

For more information about the errors and possible solutions, please read the following articles:
[Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

```