# C# Wrapper SDK Initialization Failure

**URL:** <https://devforum.zoom.us/t/c-wrapper-sdk-initialization-failure/1128>\
**Category:** Windows\
**Created:** [March 28, 2018, 2:38pm UTC](https://devforum.zoom.us/t/c-wrapper-sdk-initialization-failure/1128 "2018-03-28T14:38:11Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![DXC\_Devs\_Zoom](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@DXC\_Devs\_Zoom](https://devforum.zoom.us/u/DXC_Devs_Zoom)\
**Post date:** [March 28, 2018, 2:38pm UTC](https://devforum.zoom.us/t/c-wrapper-sdk-initialization-failure/1128/1 "2018-03-28T14:38:11Z")

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HI All,

I got the zoom\_sdk\_demo app working. It runs, initializes, authenticates and starts meetings correctly but the exact same code in our application fails on initialization. I receive an error

&nbsp;ZOOM\_SDK\_DOTNET\_WRAP.SDKError.SDKERR\_INVALID\_PARAMETER

which seems to suggest that i have the wrong app key and secret but those aren’t even passed in to the init function.&nbsp;

I have a suspicion it something related to how the wrapper is incorporated into the project but i can’t find any clear instructions on how that is done.&nbsp;

Any help would be really appreciated.

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**Author:** ![DXC\_Devs\_Zoom](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@DXC\_Devs\_Zoom](https://devforum.zoom.us/u/DXC_Devs_Zoom)\
**Post date:** [March 28, 2018, 2:51pm UTC](https://devforum.zoom.us/t/c-wrapper-sdk-initialization-failure/1128/2 "2018-03-28T14:51:05Z")

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Typical right after I ask the question I figure out the solution.&nbsp;

The zoom SDK files had been added to a build folder and the “Copy To Output Directory” property of the files set to “Copy Always”. They weren’t actually added to the bin folder. Manually copying the files directly to the bin folder fixed the issue.

I’ll leave the post here so someone can learn from my mistakes.

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**Author:** ![ramprasad](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/ramprasad/32/28966_2.png) [@ramprasad](https://devforum.zoom.us/u/ramprasad)\
**Post date:** [July 8, 2021, 5:33am UTC](https://devforum.zoom.us/t/c-wrapper-sdk-initialization-failure/1128/3 "2021-07-08T05:33:11Z")

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Hi DXC\_Devs\_Zoom,

Please give me brief about the solution how you can overcome that one.

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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:** [July 9, 2021, 4:35pm UTC](https://devforum.zoom.us/t/c-wrapper-sdk-initialization-failure/1128/4 "2021-07-09T16:35:18Z")

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Hey @ramprasad,

Are you receiving an invalid parameter error?

Thanks!  
Michael