# Issue in building the project using Sendbird Call SDK

**URL:** <https://community.sendbird.com/t/issue-in-building-the-project-using-sendbird-call-sdk/536>\
**Category:** Android\
**Tags:** sendbird-call, android\
**Created:** [June 29, 2020, 2:53pm UTC](https://community.sendbird.com/t/issue-in-building-the-project-using-sendbird-call-sdk/536 "2020-06-29T14:53:00Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Sooraj\_R](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/sooraj_r/32/315_2.png) [@Sooraj\_R](https://community.sendbird.com/u/Sooraj_R)\
**Post date:** [June 29, 2020, 2:53pm UTC](https://community.sendbird.com/t/issue-in-building-the-project-using-sendbird-call-sdk/536/1 "2020-06-29T14:53:00Z")

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I am getting this error:  
Duplicate class org.webrtc.AudioProcessingFactory found in modules classes.jar (com.sendbird.sdk:sendbird-webrtc:1.0.4107) and classes.jar (org.webrtc:google-webrtc:1.0.24180)

I have another SDK in my project because of which I guess this error is happening.  
What should I exclude in the dependency of the other SDK to avoid this error?

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**Author:** ![Nathan.Park](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/nathan.park/32/316_2.png) [@Nathan.Park](https://community.sendbird.com/u/Nathan.Park)\
**Post date:** [June 30, 2020, 12:29am UTC](https://community.sendbird.com/t/issue-in-building-the-project-using-sendbird-call-sdk/536/2 "2020-06-30T00:29:18Z")

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Thank you for your interest in Sendbird Calls SDK.  
Yes, I agree with your assumption. As far as I know, our WebRTC library(com.sendbird.sdk:sendbird-webrtc:1.0.4107) version is higher than the one which is used in another lib (org.webrtc:google-webrtc:1.0.24180). So I guess if you exclude WebRTC library from another library, the conflict would be solved.

implementation (‘another.sdk.using.webrtc:1.0.0’) {  
exclude group: “org.webrtc”, module: ‘google-webrtc’  
}

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**Author:** ![Nhieu\_NH](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/nhieu_nh/32/2441_2.png) [@Nhieu\_NH](https://community.sendbird.com/u/Nhieu_NH)\
**Post date:** [May 25, 2022, 9:21am UTC](https://community.sendbird.com/t/issue-in-building-the-project-using-sendbird-call-sdk/536/3 "2022-05-25T09:21:50Z")

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I also this problem, when my project also had a module that was using a different version of WebRTC. Is there any solution to make them work together?