To more specific class: all return error after upgrade from LV2011 to 2012

[_Faust]

I have working projects/executables built in labview 2011. When loading the exact same project in 2012 EVERY 'to more specific class' returns an error.

For example, making a generic control reference into a 'numeric'.

Redoing the exact same action makes no difference. What has changed in LV2012?

[Norbert_B]

Can you post an example VI containing such code? Please post the original 2011 code.

Norbert

[Hossein128]

Hello,

Thanks for your posting here. To help you further, I need a screenshot of the error and the steps to reproduce this problem.

You can give your example to me to which I can see the same behavior whit it.

Kind regards,

Hossein

[Gibbi]

Hi there,

i know this is a really old thread - but was there any solution? I upgraded from LV2011 to 2018 and have an issue on the To more specific class. Seems to be a change deeply inside but i cannot find any references to that.

kind regards

gibbi

[Bob_Schor]

Since you clearly read the earlier threads, you must have noted the request to provide LabVIEW code (meaning a file whose extension is .VI).  It helps to provide enough so we can "reproduce the error" -- if we don't know what is wrong, it is difficult to help you fix it.

Bob Schor

[Gibbi]

Dear Bob,

thanks for your reply. My hope was, that the initial creator of this thread may post his solution. Often you find your solution on your own, and do not feed it back into the community. If you're searching for a deep deep bug in a complex system, you'll clutch at any straw that is near the issue. So probably the problem of the creator is not exactly my current issue - but reading about his solution can bring me up to other ideas where to search.

Thanks for your effort.

Gibbi

[aptivo]

Are these standard LabVIEW classes or are these classes you've implemented yourself?

If so, have you checked the correct inheritance of these classes?

Can you cast the class into an LabVIEW Object and cast it back to your class?