NSString *str = self.completedDrills.drillId;
文字列を設定しているだけですが、例外が発生しています
NSInvalidArgumentException'、理由: '-[__NSCFDictionary drillTitle]: 認識されないセレクターがインスタンスに送信されました
これが私のドリルクラスです
#import <Foundation/Foundation.h>
#import "Category.h"
#import "Users.h"
#import "Benchmark.h"
@interface Drill : NSObject
@property (nonatomic, retain) NSString *drillId;
@property (nonatomic, retain) NSString *drillTitle;
@property (nonatomic, retain) NSString *crewName;
@property (nonatomic, retain) NSString *objectives;
@property (nonatomic, retain) Category *category;
@property (nonatomic, retain) NSMutableArray *benchmarks;
@property (nonatomic, retain) NSMutableArray *crewMembers;
@property (nonatomic, retain) Users *currentUser;
@property (nonatomic, retain) NSString *totalDrillTime;
@property (nonatomic, retain) NSString *timestamp;
@property (nonatomic, retain) NSString *error;
- (id)initWithCoder:(NSCoder *)coder;
- (void)encodeWithCoder:(NSCoder *)encoder;
@end