[TYPO3-dev] Table error in extension

[Thomas Mammitzsch]

hi list,

i'm writing an extension which adds some tables and a new column to the
tt_content table (holds information how the plugin is configured). The
extension works fine, but in Ext-Manager->Information view i see some
error messages:

Database status: Table error! Probably one or more required
fields/tables are missing in the database!

Errors:	Some tables or fields are missing!

Naming errors:	 tables	 tt_content tt_content

i also took a look in the InstallTool but the only thing it suggests is:

ALTER TABLE tx_vxreferences_clients CHANGE clientname clientname
varchar(255) NOT NULL default "";
Current value: varchar(255) NOT NULL default ''

ALTER TABLE tx_vxreferences_clients CHANGE description_short
description_short varchar(255) NOT NULL default "";
Current value: varchar(255) NOT NULL default ''

which seems to be the same as is.
I can't find any errors.

Suggestions?

bye, Thomas