# Zoom iOS SDK - build error in XCode

**URL:** <https://devforum.zoom.us/t/zoom-ios-sdk-build-error-in-xcode/69173>\
**Category:** iOS\
**Created:** [May 18, 2022, 1:14pm UTC](https://devforum.zoom.us/t/zoom-ios-sdk-build-error-in-xcode/69173 "2022-05-18T13:14:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![harishvgk](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/harishvgk/32/36041_2.png) [@harishvgk](https://devforum.zoom.us/u/harishvgk)\
**Post date:** [May 18, 2022, 1:14pm UTC](https://devforum.zoom.us/t/zoom-ios-sdk-build-error-in-xcode/69173/1 "2022-05-18T13:14:19Z")

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tried to add MobileRTC.framework, MobileRTCScreenShare.framework and MobileRTCResources.bundle. Linking and other settings are proper. But getting build error in XCode 13.4

Undefined symbols for architecture x86\_64:  
“\_kVTCompressionPropertyKey\_FieldCount”, referenced from:  
l056 in MobileRTCScreenShare  
“\_kVTCompressionPropertyKey\_MaxFrameDelayCount”, referenced from:  
l056 in MobileRTCScreenShare  
“\_VTCompressionSessionEncodeFrame”, referenced from:  
l052 in MobileRTCScreenShare  
l058 in MobileRTCScreenShare  
“\_VTCompressionSessionCreate”, referenced from:  
l050 in MobileRTCScreenShare  
l056 in MobileRTCScreenShare  
“\_kVTCompressionPropertyKey\_RealTime”, referenced from:  
l050 in MobileRTCScreenShare  
l056 in MobileRTCScreenShare  
“\_VTCompressionSessionCompleteFrames”, referenced from:  
l048 in MobileRTCScreenShare  
l055 in MobileRTCScreenShare  
“\_kVTCompressionPropertyKey\_ProfileLevel”, referenced from:  
l050 in MobileRTCScreenShare  
“\_kVTCompressionPropertyKey\_AllowFrameReordering”, referenced from:  
l050 in MobileRTCScreenShare  
l056 in MobileRTCScreenShare  
“\_kVTCompressionPropertyKey\_DataRateLimits”, referenced from:  
l050 in MobileRTCScreenShare  
“\_kVTCompressionPropertyKey\_AverageBitRate”, referenced from:  
l050 in MobileRTCScreenShare  
“\_VTSessionSetProperty”, referenced from:  
l050 in MobileRTCScreenShare  
l056 in MobileRTCScreenShare  
“\_kVTProfileLevel\_H264\_Baseline\_AutoLevel”, referenced from:  
l050 in MobileRTCScreenShare  
“\_kVTCompressionPropertyKey\_ExpectedFrameRate”, referenced from:  
l050 in MobileRTCScreenShare  
“\_kVTCompressionPropertyKey\_Quality”, referenced from:  
l056 in MobileRTCScreenShare  
“\_VTCompressionSessionInvalidate”, referenced from:  
l048 in MobileRTCScreenShare  
l055 in MobileRTCScreenShare  
ld: symbol(s) not found for architecture x86\_64  
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Can someone please help?

Thanks in advance!

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<div class="post-metadata">

**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [May 19, 2022, 7:30pm UTC](https://devforum.zoom.us/t/zoom-ios-sdk-build-error-in-xcode/69173/2 "2022-05-19T19:30:51Z")

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Hi @harishvgk,

Can you please provide some context around how exactly the SDK was added to your project? Also, based on the file types, it seems like you are on an older version of the SDK. The more recent versions use an XCFramework. Please try updating to a recent version.

Thanks!

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<div class="post-metadata">

**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, 2022, 5:31am UTC](https://devforum.zoom.us/t/zoom-ios-sdk-build-error-in-xcode/69173/3 "2022-06-19T05:31:38Z")

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