崩溃信息：sudoku: Dyld Message: Symbol not found: _AVCaptureDeviceTypeBuiltInWideAngleCamera + 0 我的项目是支持iOS9.0以上系统的，并未使用到相机及相关的API，一开始的几个版本并没有这样的崩溃，但是在某一次更新后，Xcode的Crashs信息里就开始出现了这样的崩溃，基本都是9.3的系统发生了崩溃，除此之外没有过多的信息可以查看， Organizer - Crashes面板此崩溃的详情只显示了"No Threads(compression May Be Hiding Threads)"。 我查看了那一次更新所做的修改，只是添加了几个新的第三方SDK，GameAnalytics、AppsFlyer和Pangle，我使用终端命令 grep -p "AVCaptureDeviceTypeBuiltInWideAngleCamera" . 搜索工程项目，显示的结果是Admob、FBAudienceNetwork和GameAnalytics三个SDK有相关的关键词，打开相对应的路径文件，发现也并没有用到，因为Admob和FBAudienceNetwork是一直都有用到的，之前并不会崩溃，所以我就只把GameAnalytics去除了，但是重新更新后，新版本依旧有这样的崩溃，谁能告诉我要怎么去排查这个问题？ Crash message: sudoku: Dyld Message: Symbol not found: _AVCaptureDeviceTypeBuiltInWideAngleCamera + 0 My project supports iOS 9.0 and above, and does not use the camera and related APIs, the first few versions did not have such a crash, but after a certain update, such a crash started to appear in Xcode's Crashs information, basically the 9.3 system crashes, but there is not much information to see, Organizer - Crashes panel details of this crash only shows "No Threads (Compression May Be Hiding Threads)". I looked at the changes made in that update, which only added a couple of new third-party SDKs, GameAnalytics, AppsFlyer and Pangle, and I used the terminal command grep -p "AVCaptureDeviceTypeBuiltInWideAngleCamera" . to search for the project, and the results showed that Admob, FBAudienceNetwork and GameAnalytics have related keywords, and I opened the corresponding path files and found that they are not used, because Admob and FBAudienceNetwork are always useful, and they did not crash before, so I just removed GameAnalytics, but after re-updating, the new version still has such a crash, can anyone tell me how to troubleshoot this problem?