# ListMeeting() SDKERR\_UNITIALIZE

**URL:** <https://devforum.zoom.us/t/listmeeting-sdkerr-unitialize/50580>\
**Category:** Windows\
**Created:** [May 19, 2021, 11:47am UTC](https://devforum.zoom.us/t/listmeeting-sdkerr-unitialize/50580 "2021-05-19T11:47:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Sara](https://avatars.discourse-cdn.com/v4/letter/s/a5b964/32.png) [@Sara](https://devforum.zoom.us/u/Sara)\
**Post date:** [May 19, 2021, 11:47am UTC](https://devforum.zoom.us/t/listmeeting-sdkerr-unitialize/50580/1 "2021-05-19T11:47:27Z")

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**Description**  
Everything works well. SDK successfully initialized and all events are working. But when I call ListMeeting() I get SDKERR\_UNINITIALIZE error.

I found a solution like this - [IPreMeetingServiceDotNetWrap.ListMeeting() claims API is uninitialized](https://devforum.zoom.us/t/ipremeetingservicedotnetwrap-listmeeting-claims-api-is-uninitialized/16790)

And for me it works… but it seems to me that re-initialization has a bad effect on the work of the SDK. Could you explain the reason for this behavior? Why is reinitialization necessary?

**Which Windows Client SDK version?**  
v.5.5.12509.0330

[SDK logs](https://drive.google.com/file/d/1o4lcNO0E-p2A2hbY-lzRCgEeN3eTKHTp/view?usp=sharing)

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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 19, 2021, 10:45pm UTC](https://devforum.zoom.us/t/listmeeting-sdkerr-unitialize/50580/2 "2021-05-19T22:45:21Z")

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Hey @Sara,

Thanks for using the dev forum!

There are known issues with the PreMeetingService and we know longer encourage developers to use it. For scheduling and listing meetings, we instead recommend that the REST API is used. [https://marketplace.zoom.us/docs/api-reference/zoom-api/meetings/meetings](https://marketplace.zoom.us/docs/api-reference/zoom-api/meetings/meetings)

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:** [June 19, 2021, 8:45am UTC](https://devforum.zoom.us/t/listmeeting-sdkerr-unitialize/50580/3 "2021-06-19T08:45:27Z")

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Closed on June 19, 2021, 8:45am UTC

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