Project Server has returned error code -1

[alexmoquia]

Hi,

I am trying to update my assignments through Outlook but when i click
on the Update Assignments button i get this error message:

Project Server has returned error code -1

Any ideas?

 

[alexmoquia]

Just for a little more background info

The Outlook plug-in is able to import tasks to my calendar. But when I
try to push my updates i get that error.

Thanks.

 

[alexmoquia]

More background info for anyone who eventually reads this.

I've pinpointed that the error is specific to a certain task. When I
update my tasks individually, I am able to do so for all but one of
them. I can not seem to understand why this specific task is returning
this error.