Events not showed in Calendar view (Page or Block)

There is a bug in Date right now that requires the same date field you specify in your calendar argument to also be added to the view's fields display.
This will fix your error.
See duplicate issue here: #389294: Time Slot Calendar does not work

Here is a quick screenshot of what you need to do to get it working:

arlinsandbulte,
Thank you for the jpeg. I think it is pointing me in the right direction. My issue is that my future events are not showing on the calendar page after upgrading Date and Calendar modules to 6.x-2.0, unless the event is added with a date that has already past and then it appears on every day up until the current date....very interesting.

Your jpeg shows what I think I need to do but after upgrading my Date and Calendar modules to 6.x-2.0, I don't have an Event Date: Field_event_date.

What I used to have, but do not see any longer when I am editing my calendar view, is a field I created called Datetime: field_event_datetime. This field shows up under my Content type which I've called Event but I do not see this field when I go to edit my view for calendar. When I try to add a Date Argument, all I see for Content are 2 instances of Content: -value and Content: -value2.

When I try to add a Field, all I see for Content are 2 instances of Content: -value and Content: -value2. I do not see a Content: -from date.

I did receive this message when I ran update:
* Field field_event_datetime formats were converted to custom formats.
* The old format type short for field field_event_datetime was converted to the new format type field_event_datetime_short.
* The old format type medium for field field_event_datetime was converted to the new format type field_event_datetime_medium.
* The old format type long for field field_event_datetime was converted to the new format type field_event_datetime_long.
* The old format type default for field field_event_datetime was converted to the new format type medium.
* The display settings for field field_event_datetime in content type event were updated.

I'm now wondering if the update renamed my fields? Why don't I see the fields I have defined when I'm editing my view? Do you have any ideas? I'm hoping that I don't have to re-install my backed up DB and old modules to get a working calendar. Thanks for any help.

I'm using Drupal 6.10 and these modules:
- Views: 6.x-2.3
- Date: 6.x-2.0
- Calendar: 6.x-2.0
- Content Construction Kit (CCK): 6.x-2.1

Stan B.

@Stan B.
use the -dev version of the Date module. That should fix your issues.
Also, I think Karen is recommending the -dev of calendar, Views, and CCK right now.

Thank you for posting this! I was at my wit's end on this issue, and it's finally solved. Thank you so much!!