# When i upgrade SendBird SDK version 3.0.185, SyncManager runtime error

**URL:** <https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525>\
**Category:** Sendbird Chat API/SDK\
**Tags:** syncmanager, chatsdk\
**Created:** [June 28, 2020, 2:45am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525 "2020-06-28T02:45:29Z")\
**Posts on this page:** 13\
**Page:** 1

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**Author:** ![ganweiming](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/ganweiming/32/311_2.png) [@ganweiming](https://community.sendbird.com/u/ganweiming)\
**Post date:** [June 28, 2020, 2:45am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/1 "2020-06-28T02:45:30Z")

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Error Message:  
Thread 3: EXC\_BAD\_ACCESS (code=2, address=0x16bbc3ff0)  
warning: could not execute support code to read Objective-C class data in the process. This may reduce the quality of type information available.

is that any solution?

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**Author:** ![Woo](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/woo/32/125_2.png) [@Woo](https://community.sendbird.com/u/Woo)\
**Post date:** [June 28, 2020, 2:52am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/2 "2020-06-28T02:52:05Z")

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Hi @ganweiming Can you tell me what SyncManager version you use?

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**Author:** ![Woo](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/woo/32/125_2.png) [@Woo](https://community.sendbird.com/u/Woo)\
**Post date:** [June 28, 2020, 2:57am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/3 "2020-06-28T02:57:23Z")

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and can you tell me which line of code will get crashed by setting exception breakpoint?

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**Author:** ![ganweiming](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/ganweiming/32/311_2.png) [@ganweiming](https://community.sendbird.com/u/ganweiming)\
**Post date:** [June 28, 2020, 3:00am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/4 "2020-06-28T03:00:56Z")

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SendBirdSyncManager (1.1.24)

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**Author:** ![ganweiming](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/ganweiming/32/311_2.png) [@ganweiming](https://community.sendbird.com/u/ganweiming)\
**Post date:** [June 28, 2020, 3:04am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/5 "2020-06-28T03:04:56Z")

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0x105f28ff0 \<+68\>: cbz w0, 0x105f2900c ; \<+96\> at SBDBaseMessage+SyncManager.m:93:34

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<div class="post-metadata">

**Author:** ![Woo](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/woo/32/125_2.png) [@Woo](https://community.sendbird.com/u/Woo)\
**Post date:** [June 28, 2020, 3:09am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/6 "2020-06-28T03:09:31Z")

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I’m on it. Will look into it and fix asap.

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**Author:** ![ganweiming](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/ganweiming/32/311_2.png) [@ganweiming](https://community.sendbird.com/u/ganweiming)\
**Post date:** [June 28, 2020, 3:13am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/7 "2020-06-28T03:13:44Z")

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and there another issue with SendBirdSyncManager: sometimes SBDGroupChannelListQuery not include channel members data in callback, i can’t find the result, case his event happened at random, maybe i query channel in child thread then refresh UI in main thread? or case of the network?

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**Author:** ![ganweiming](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/ganweiming/32/311_2.png) [@ganweiming](https://community.sendbird.com/u/ganweiming)\
**Post date:** [June 28, 2020, 3:14am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/8 "2020-06-28T03:14:40Z")

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thanks so much, wait for SendBirdSyncManager next version

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<div class="post-metadata">

**Author:** ![Woo](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/woo/32/125_2.png) [@Woo](https://community.sendbird.com/u/Woo)\
**Post date:** [June 28, 2020, 3:19am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/9 "2020-06-28T03:19:42Z")

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Btw, `Error Message: Thread 3: EXC_BAD_ACCESS (code=2, address=0x16bbc3ff0)` are you facing this error every time?

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**Author:** ![ganweiming](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/ganweiming/32/311_2.png) [@ganweiming](https://community.sendbird.com/u/ganweiming)\
**Post date:** [June 28, 2020, 3:23am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/10 "2020-06-28T03:23:08Z")

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yes, i will post shortcut for you

 ![企业微信截图_4bc04652-0792-4045-858d-ddaf03fee587](https://us1.discourse-cdn.com/flex020/uploads/sendbird/original/1X/e4a82d5aab245479617c385a119a59b5d2a57d5f.png)

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<div class="post-metadata">

**Author:** ![Woo](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/woo/32/125_2.png) [@Woo](https://community.sendbird.com/u/Woo)\
**Post date:** [June 28, 2020, 3:24am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/11 "2020-06-28T03:24:06Z")

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oh i see it seems like unexpected recursion occurs. Thanks for the information!

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<div class="post-metadata">

**Author:** ![Woo](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/woo/32/125_2.png) [@Woo](https://community.sendbird.com/u/Woo)\
**Post date:** [June 28, 2020, 4:30am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/12 "2020-06-28T04:30:52Z")

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@ganweiming I just release v1.1.25 patch. Can you install latest version and confirm the fix? thanks

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<div class="post-metadata">

**Author:** ![ganweiming](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/ganweiming/32/311_2.png) [@ganweiming](https://community.sendbird.com/u/ganweiming)\
**Post date:** [June 28, 2020, 6:01am UTC](https://community.sendbird.com/t/when-i-upgrade-sendbird-sdk-version-3-0-185-syncmanager-runtime-error/525/13 "2020-06-28T06:01:33Z")

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It work, thanks so much, and f it’s convenient for you, pls check issue about can’t get channel members data