cvs commit: sticky tag ‚HEAD‘ for file ‚…‘ is not a branch

:~$ cvs commit -m "..." someFile.php
cvs commit: sticky tag 'HEAD' for file 'someFile.php' is not a branch
cvs [commit aborted]: correct above errors first!
:~$ cvs update -A someFile.php
M someFile.php
:~$ cvs commit -m "..." someFile.php