Redmine

Hi,

I've just installed Redmine, and I wanted to import my Mantis data, but I got an error :

rake aborted!
PG::InvalidDatetimeFormat: ERROR: invalid input syntax for type timestamp : « 1387451680 »
: INSERT INTO "users" ("admin", "auth_source_id", "created_on", "firstname", "hashed_password", "identity_url", "language", "last_login_on", "lastname", "login", "mail", "mail_notification", "must_change_passwd", "salt", "status", "type", "updated_on") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17) RETURNING "id" 

I tried the default version of migrate_from_mantis.rake, and 2 updated ones found on this forum, and none works.

Someone know how I can fix this, or find the problem ?

Thanks,
Pou.