Dear All,

When i attempt to delete item through JSPUI interface it gives internal
system error message but when i delete the same through xmlui interface it
aslo gives some error:

"org.postgresql.util.PSQLException: ERROR: update or delete on table
"item" violates foreign key constraint "$2" on table "collection2item""
Detail: Key (item_id)=(429349) is still referenced from table
"collection2item""

But ultimately it seems to be deleted, i have updated my dspace 1.2.1
to 4.2 by upgrading dabase schema as instructed for multiversion
update option available at:
https://wiki.duraspace.org/display/DSDOC4x/Multi-Version+Upgrade+Tips+and+Tricks

Kindly suggest for correcting the error.



-- 
With Regards,
Vinod Kumar Mishra,
Assistant Librarian,
Biju Patnaik Central Library (BPCL),
NIT Rourkela.
Mob:91+9439420860
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