self._el_0 is not a function

[mateenQureshi]

Can anyone have idea about the following error:
'self._el_0 is not a function'
I have a form in the bootstrap modal, In form I have submit button. when i submit the form, it throws the error.
Please quick response is required

Thank You

[Jefiozie]

Hi,

As described in the issue template we would like to have a full description with plunker and version.
In the case we can have a look at the issue and reproduce the issue much quicker.

Please update your issue as requested in the issue template.

The issues forum is NOT for support requests. It is for bugs and feature requests only.
Please read https://github.com/angular-ui/ui-select/blob/master/CONTRIBUTING.md and search
existing issues (both open and closed) prior to opening any new issue and ensure you follow the instructions therein.

Bug description:

Link to minimally-working plunker that reproduces the issue:

Version of Angular, UI-Select, and Bootstrap/Select2/Selectize CSS

Angular:
UI-Select:
Bootstrap/Select2/Selectize CSS (if applicable):

Thanks 😄