# Errors caused by attributes

**URL:** <https://community.sendbird.com/t/errors-caused-by-attributes/1136>\
**Category:** iOS\
**Tags:** sendbird-call\
**Created:** [October 14, 2020, 5:58am UTC](https://community.sendbird.com/t/errors-caused-by-attributes/1136 "2020-10-14T05:58:52Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Gaurav\_Kumar](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/gaurav_kumar/32/599_2.png) [@Gaurav\_Kumar](https://community.sendbird.com/u/Gaurav_Kumar)\
**Post date:** [October 14, 2020, 5:58am UTC](https://community.sendbird.com/t/errors-caused-by-attributes/1136/1 "2020-10-14T05:58:53Z")

</div>

Hello,

I am getting errors like this:

- Unknown attribute ‘\_inheritsConvenienceInitializers’
- Unknown attribute ‘\_hasMissingDesignatedInitializers’

Used this link to download files: [https://github.com/sendbird/UIKit-iOS-Swift](https://github.com/sendbird/UIKit-iOS-Swift)

Also, as per the solution tried in X-Code 10 and X-Code 11.3.1 using Swift 4.2. However, the issue is not getting resolved.

Please let me know what needs to be done to solve this.