Closes #3457

lib/ios/RNNBridgeModule.m

@@ -93,7 +93,7 @@ RCT_EXPORT_METHOD(showOverlay:(NSString*)commandId layout:(NSDictionary*)layout
 RCT_EXPORT_METHOD(dismissOverlay:(NSString*)commandId componentId:(NSString*)componentId resolve:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject) {
 	[_commandsHandler dismissOverlay:componentId completion:^{
 		resolve(@(1));
-	}];
+	} rejection:reject];
 }
 
 RCT_EXPORT_METHOD(getLaunchArgs:(NSString*)commandId :(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject) {

lib/ios/RNNCommandsHandler.h

@@ -32,6 +32,6 @@
 
 -(void)showOverlay:(NSDictionary *)layout completion:(RNNTransitionCompletionBlock)completion;
 
--(void)dismissOverlay:(NSString*)componentId completion:(RNNTransitionCompletionBlock)completion;
+-(void)dismissOverlay:(NSString*)componentId completion:(RNNTransitionCompletionBlock)completion rejection:(RNNTransitionRejectionBlock)reject;
 
 @end

lib/ios/RNNCommandsHandler.m

@@ -257,13 +257,13 @@ static NSString* const setDefaultOptions	= @"setDefaultOptions";
 	}];
 }
 
-- (void)dismissOverlay:(NSString*)componentId completion:(RNNTransitionCompletionBlock)completion {
+- (void)dismissOverlay:(NSString*)componentId completion:(RNNTransitionCompletionBlock)completion rejection:(RNNTransitionRejectionBlock)reject {
 	[self assertReady];
 
 	[_overlayManager dismissOverlay:componentId completion:^{
 		[_eventEmitter sendOnNavigationCommandCompletion:dismissModal params:@{@"componentId": componentId}];
 		completion();
-	}];
+	} rejection:reject];
 }
 
 #pragma mark - private

lib/ios/RNNOverlayManager.h

@@ -7,6 +7,6 @@
 - (instancetype)initWithStore:(RNNStore*)store;
 
 - (void)showOverlay:(UIViewController*)viewController completion:(RNNTransitionCompletionBlock)completion;
-- (void)dismissOverlay:(NSString*)componentId completion:(RNNTransitionCompletionBlock)completion;
+- (void)dismissOverlay:(NSString*)componentId completion:(RNNTransitionCompletionBlock)completion rejection:(RNNTransitionRejectionBlock)reject;
 
 @end

lib/ios/RNNOverlayManager.m

@@ -1,4 +1,5 @@
 #import "RNNOverlayManager.h"
+#import "RNNErrorHandler.h"
 
 @implementation RNNOverlayManager {
 	NSMutableDictionary* _overlayDict;
@@ -20,10 +21,14 @@
 	completion();
 }
 
-- (void)dismissOverlay:(NSString*)componentId completion:(RNNTransitionCompletionBlock)completion {
+- (void)dismissOverlay:(NSString*)componentId completion:(RNNTransitionCompletionBlock)completion rejection:(RNNTransitionRejectionBlock)reject {
 	RNNRootViewController* viewController = [_overlayDict objectForKey:componentId];
-	[self removeCachedOverlay:viewController];
-	completion();
+	if (viewController) {
+		[self removeCachedOverlay:viewController];
+		completion();
+	} else {
+		[RNNErrorHandler reject:reject withErrorCode:1010 errorDescription:@"ComponentId not found"];
+	}
 }
 
 #pragma mark - private

lib/ios/RNNStore.h

@@ -5,6 +5,7 @@
 #import "ReactNativeNavigation.h"
 
 typedef void (^RNNTransitionCompletionBlock)(void);
+typedef void (^RNNTransitionRejectionBlock)(NSString *code, NSString *message, NSError *error);
 
 @interface RNNStore : NSObject