fix: Crash when UINavigationController without rootViewController (#3455

) When a UINavigationController is not initialized with initWithRootViewController, it leads to a crash Co-authored-by: Dhiogo Brustolin <[email protected]>
getsentry · Nov 29, 2023 · 6e625c5 · 6e625c5
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## Unreleased
+
+
+### Fixes 
+
+- Crash when UINavigationController doesn't have rootViewController (#3455)
+
 ## 8.17.0
 
 ### Features

diff --git a/Sources/Sentry/SentryUIApplication.m b/Sources/Sentry/SentryUIApplication.m
@@ -204,7 +204,10 @@ - (BOOL)isContainerViewController:(UIViewController *)viewController
     (UIViewController *)containerVC
 {
     if ([containerVC isKindOfClass:UINavigationController.class]) {
-        return @[ [(UINavigationController *)containerVC topViewController] ];
+        if ([(UINavigationController *)containerVC topViewController]) {
+            return @[ [(UINavigationController *)containerVC topViewController] ];
+        }
+        return nil;
     }
     if ([containerVC isKindOfClass:UITabBarController.class]) {
         UITabBarController *tbController = (UITabBarController *)containerVC;