Hi dspells,
It seems the command-line client can't detect your SCM system automatically. To avoid this issue, you can use the global options and force the client to use specific SCM-related options:
https://support.smartbear.com/collaborator/docs/reference/cmdline-global-options.html#subversion
Also, you are trying to upload all the locally modified files from your local SVN repository. Make sure that the current directory of the terminal/cmd was changed to the directory where your local SVN repository locates before executing the "ccollab addchanges new ." command.
