There are build errors generating in my RNGestureHandler.h file under ExpoKit. Unknown type name 'RNGestureHandlerState'

Question

There are build errors generating in my RNGestureHandler.h file under ExpoKit. Unknown type name 'RNGestureHandlerState'. This issue occurred after I detached expo from the project.

I tried fixes I saw such changing the #import <XXX.h> to import "XXX.h" but the errors still remain .

These are the error messages

#import <RNGestureHandlerState.h>
#import <RNGestureHandlerDirection.h>
#import <RNGestureHandlerEvents.h>

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#import <React/RCTConvert.h>

#define VEC_LEN_SQ(pt) (pt.x * pt.x + pt.y * pt.y)
#define TEST_MIN_IF_NOT_NAN(value, limit) \
(!isnan(limit) && ((limit < 0 && value <= limit) || (limit >= 0 && value >= limit)))

#define TEST_MAX_IF_NOT_NAN(value, max) \
(!isnan(max) && ((max < 0 && value < max) || (max >= 0 && value > max)))

#define APPLY_PROP(recognizer, config, type, prop, propName) do { \
id value = config[propName]; \
if (value != nil) recognizer.prop = [RCTConvert type:value]; \
} while(0)

#define APPLY_FLOAT_PROP(prop) do { APPLY_PROP(recognizer, config, CGFloat, prop, @#prop); } while(0)
#define APPLY_INT_PROP(prop) do { APPLY_PROP(recognizer, config, NSInteger, prop, @#prop); } while(0)
#define APPLY_NAMED_INT_PROP(prop, propName) do { APPLY_PROP(recognizer, config, NSInteger, prop, propName); } while(0)

@protocol RNGestureHandlerEventEmitter

- (void)sendTouchEvent:(nonnull RNGestureHandlerEvent *)event;

- (void)sendStateChangeEvent:(nonnull RNGestureHandlerStateChange *)event;

@end


@protocol RNRootViewGestureRecognizerDelegate <UIGestureRecognizerDelegate>

- (void)gestureRecognizer:(nullable UIGestureRecognizer *)gestureRecognizer
    didActivateInRootView:(nullable UIView *)rootView;

@end


@interface RNGestureHandler : NSObject <UIGestureRecognizerDelegate> {

@protected UIGestureRecognizer *_recognizer;
@protected RNGestureHandlerState _lastState;     //Error in this line: Unknown type name 'RNGestureHandlerState'



}

+ (nullable RNGestureHandler *)findGestureHandlerByRecognizer:(nonnull UIGestureRecognizer *)recognizer;

- (nonnull instancetype)initWithTag:(nonnull NSNumber *)tag;

@property (nonatomic, readonly, nonnull) NSNumber *tag;
@property (nonatomic, weak, nullable) id<RNGestureHandlerEventEmitter> emitter;
@property (nonatomic, readonly, nullable) UIGestureRecognizer *recognizer;
@property (nonatomic) BOOL enabled;
@property(nonatomic) BOOL shouldCancelWhenOutside;

- (void)bindToView:(nonnull UIView *)view;
- (void)unbindFromView;
- (void)configure:(nullable NSDictionary *)config NS_REQUIRES_SUPER;
- (void)handleGesture:(nonnull id)recognizer;
- (BOOL)containsPointInView;
- (RNGestureHandlerState)state;                                           //Error in this line: Expected a type
- (nullable RNGestureHandlerEventExtraData *)eventExtraData:(nonnull id)recognizer;

- (void)reset;
- (void)sendEventsInState:(RNGestureHandlerState)state                     //Error in this line: Expected a type
           forViewWithTag:(nonnull NSNumber *)reactTag
            withExtraData:(RNGestureHandlerEventExtraData *)extraData;

@end

Answer 1

I don't know if you fixed this but I had the same issue and I fixed it by updating all my modules using

yarn upgrade 

I then tried to reinstall pods but was told my version of cocoapods was outdated and to use the following to update it:

sudo gem install cocoapods --pre

I could then install pods as required with

pod install

In xcode I then cleaned my build dir and did a fresh build and run and my app fired up fine again.