Seems like subversion path error.
The first thing I would check is your path. The message your are receiving is an indication that the SVN command line utility is not located where Windows can find it (i.e. not within the PATH). A good way to find out where the utility is to open a command prompt on the root (i.e. C:\) and run the following command:
dir svn.* /s
This will find you every single file beginning "svn." (e.g. svn.com, svn.exe, svn.txt, etc.) is on your hard drive. Once you find the location of the utility ensure *THAT* folder is within your PATH environmental variable because, obviously, it's not in C:\Subversion\bin.
Ref:
http://www.svnforum.org/threads/37914-svn-is-not-recognized-as-an-internal-or-external-command[
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