[TriLUG] bash script help

[MvER - TrLUG via TriLUG]

I expect this is a simple syntax problem, but it eludes my efforts:

Partial log of script

SETTING THE VARS:------------------------
dt [date] is:          2016-03-26:2113    [want to append this to  file
name eventually]
kpdir is:                Desktop/    [actually /home/mver/Desktop is the
full path. I am running in /home/mver as the owner and user]
keepass source is:     mr-master.kbdx
kpdest is:             Dropbox/Apps/Keepass2Android/
kpdestarch is:      Dropbox/Apps/Keepass2Android/mr-master.kbdx

Beginning backup of files @ 2016-03-26:2113

RUNNING THE COMMAND ----------------- [i want to backup mr-master.kbdx
into Dropbox]
rsync -vnuxit ${kpdir}${kpsrc}   $kpdestarch

WHICH EXECUTES AS: -----------------
rsync -vnuxit   Desktop/mr-master.kbdx   
Dropbox/Apps/Keepass2Android/mr-master.kbdx

ERROR RESULT:----------------------
rsync: link_stat "/home/mver/Desktop/mr-master.kbdx" failed: No such
file or directory (2)

No point in running a real backup (without -n) until the file naming is
corrected.

Thanks for any help.
Mike R.