SVN integration certificate issue

I have just installed the server and am trying this out but I can't get the SVN integration working because of this error.  I pressed the 'Accept Certificate' button but the 'Test Connection' button always responds with this message.  how do I fix this?



Error: Invalid input: Version control server configuration error: Could not create valid Subversion configuration based on configured repository url: svn: E230001: Unable to connect to a repository at URL 'https://rmfile02.routematch.local:8443/svn/RouteMatch'

svn: E230001: Server SSL certificate verification failed: issuer is not trusted