[TYPO3-mvc] The value must be of type "Extension_model_name", but was of type "NULL".

[Franz Koch]

Hey Daniel,

> Now that my extension is showing the products in frontend it is time to
> make some forms and save data into the database :)
> I'm following the blog example, but something strange happens.
...
> Any ideas what could be wrong with this?

have you checked the spelling of the properties in your form template? 
If there is a misspelling the object isn't build and you run into that 
error.

-- 
kind regards,
Franz Koch