could not write tapelist

[Mike]

tapelist is listed in amanda.conf (/etc/amanda/DailySet1/tapelist), 
owned by amanda user, and writable, so whats up??

[EMAIL PROTECTED]:/etc/amanda$ amadmin DailySet1 no-reuse DailySet16
amadmin: marking tape DailySet16 as not reusable.
amadmin: could not write tapelist "(null)"