# Undefine type when initializing IZoomInstantSDK

**URL:** <https://devforum.zoom.us/t/undefine-type-when-initializing-izoominstantsdk/51224>\
**Category:** Windows\
**Created:** [May 28, 2021, 1:07am UTC](https://devforum.zoom.us/t/undefine-type-when-initializing-izoominstantsdk/51224 "2021-05-28T01:07:00Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![gpayyavula](https://avatars.discourse-cdn.com/v4/letter/g/58956e/32.png) [@gpayyavula](https://devforum.zoom.us/u/gpayyavula)\
**Post date:** [May 28, 2021, 1:07am UTC](https://devforum.zoom.us/t/undefine-type-when-initializing-izoominstantsdk/51224/1 "2021-05-28T01:07:00Z")

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**Description**  
See the code attached. The Visual studio throws an error "undefined type ‘ZOOMINSTANTSDK::ZoomInstantSDK’.

I have included headers and library as in [https://marketplace.zoom.us/docs/sdk/video/windows/getting-started/integrate](https://marketplace.zoom.us/docs/sdk/video/windows/getting-started/integrate)

**Which Desktop Video SDK version?**  
zoom-instant-sdk-windows-1.0.2

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:

1. Start a project in Visual studio 2019
2. Include headers and library as in integrate step
3. Add code as attached.
4. See error

**Screenshots**

 ![Capture](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/9/8/985cf58dbdf971572c4e7cd13c963accdf6c4dac.png)

**Device (please complete the following information):**

- Device: [e.g. Apple MacBook Pro (13-inch, M1)]
- OS: [e.g. macOS Big Sur 11.2.1]

**Additional context**  
Add any other context about the problem here.

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [May 28, 2021, 7:01pm UTC](https://devforum.zoom.us/t/undefine-type-when-initializing-izoominstantsdk/51224/2 "2021-05-28T19:01:24Z")

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Hey @gpayyavula,

Thanks for using the dev forum!

Can you provide your list of includes?

Thanks!  
Michael

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**Author:** ![gp583101](https://avatars.discourse-cdn.com/v4/letter/g/8797f3/32.png) [@gp583101](https://devforum.zoom.us/u/gp583101)\
**Post date:** [May 31, 2021, 5:40am UTC](https://devforum.zoom.us/t/undefine-type-when-initializing-izoominstantsdk/51224/3 "2021-05-31T05:40:22Z")

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Including below header files fixed the issue  
#include \<zoom\_instant\_sdk\_api.h\>  
#include \<zoom\_instant\_sdk\_def.h\>  
#include \<zoom\_instant\_sdk\_platform.h\>  
#include \<zoom\_instant\_sdk\_interface.h\>  
#include \<zoom\_instant\_sdk\_delegate\_interface.h\>

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<div class="post-metadata">

**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [June 1, 2021, 8:17pm UTC](https://devforum.zoom.us/t/undefine-type-when-initializing-izoominstantsdk/51224/4 "2021-06-01T20:17:03Z")

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Hey @gp583101,

Awesome! I am happy to hear 🙂  
Please let us know if you run into anything else.

Thanks!  
Michael

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [July 2, 2021, 6:17am UTC](https://devforum.zoom.us/t/undefine-type-when-initializing-izoominstantsdk/51224/5 "2021-07-02T06:17:30Z")

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