TYPO3 Core

Hi Andrei,

please do the following:
Log in as an admin, go to Usersettings and create the Enable Install Tool file. Log in to the Install Tool, go to Database Analyzer and press the button "Compare" next to "Update required tables".
There should be a change to the table be_users. Confirm the changes. Afterwards there should stand "Everything OK".

Then delete all users you might have added and add a new user again (as you wrote above, step 3).

Does this solve your problem?
Btw: Which browser do you use?

Just installed from the Source + Dummy. Problem is not there.

Deleted groups and users, no luck. Will do more testing to narrow it down.

This is the same as #22973. There is an error in the SQL definitions in the SQL file which comes with the Introduction Package.
See here: http://forge.typo3.org/issues/8465

You can however use the Introduction Package, but before you create any BE User, you must go to the Install Tool, do the Compare and confirm the changes. After that everything should work...

no need to narrow it down, issue is known and IMO fixed (don't lnow if already online)

Yep. The be_user didn't had an auto_increment. (possibly creating more users with the same ID, thus crashing the BE session).

Should update the Introductory Package

Cool. I searched for a similar bug, but couldn't find it.

Can be closed

Nice to hear that it works.

Resolved as duplicate of #22973.