ScriptingBridge - >プロパティに割り当てることができません： 'self'は不変です

Question

スクリプトブリッジを使用して、私のosxアプリケーションからSpotifyを制御しています。

spotify.soundVolume = 10 

は私が

cannot assign to property: 'self' is immutable 

は私が間違って何をやっているエラーを取得：私はしようとすると、その後

var spotify: AnyObject = SBApplication(bundleIdentifier: "com.spotify.client")! 

：

私はそうのようなアプリケーションオブジェクトを作成しています？私は楽しんでるのマニュアルに従って音量を設定することができるはずです。

spotify.setValue（sender.integerValue、forKey：「https://developer.spotify.com/applescript-api/

/* 
* Spotify.h 
*/ 

#import <AppKit/AppKit.h> 
#import <ScriptingBridge/ScriptingBridge.h> 


@class SpotifyApplication, SpotifyTrack, SpotifyApplication; 

enum SpotifyEPlS { 
    SpotifyEPlSStopped = 'kPSS', 
    SpotifyEPlSPlaying = 'kPSP', 
    SpotifyEPlSPaused = 'kPSp' 
}; 
typedef enum SpotifyEPlS SpotifyEPlS; 



/* 
* Spotify Suite 
*/ 

// The Spotify application. 
@interface SpotifyApplication : SBApplication 

@property (copy, readonly) SpotifyTrack *currentTrack; // The current playing track. 
@property NSInteger soundVolume; // The sound output volume (0 = minimum, 100 = maximum) 
@property (readonly) SpotifyEPlS playerState; // Is Spotify stopped, paused, or playing? 
@property double playerPosition; // The player’s position within the currently playing track in seconds. 
@property (readonly) BOOL repeatingEnabled; // Is repeating enabled in the current playback context? 
@property BOOL repeating; // Is repeating on or off? 
@property (readonly) BOOL shufflingEnabled; // Is shuffling enabled in the current playback context? 
@property BOOL shuffling; // Is shuffling on or off? 

- (void) nextTrack; // Skip to the next track. 
- (void) previousTrack; // Skip to the previous track. 
- (void) playpause; // Toggle play/pause. 
- (void) pause; // Pause playback. 
- (void) play; // Resume playback. 
- (void) playTrack:(NSString *)x inContext:(NSString *)inContext; // Start playback of a track in the given context. 

@end 

// A Spotify track. 
@interface SpotifyTrack : SBObject 

@property (copy, readonly) NSString *artist; // The artist of the track. 
@property (copy, readonly) NSString *album; // The album of the track. 
@property (readonly) NSInteger discNumber; // The disc number of the track. 
@property (readonly) NSInteger duration; // The length of the track in seconds. 
@property (readonly) NSInteger playedCount; // The number of times this track has been played. 
@property (readonly) NSInteger trackNumber; // The index of the track in its album. 
@property (readonly) BOOL starred; // Is the track starred? 
@property (readonly) NSInteger popularity; // How popular is this track? 0-100 
- (NSString *) id; // The ID of the item. 
@property (copy, readonly) NSString *name; // The name of the track. 
@property (copy, readonly) NSString *artworkUrl; // The URL of the track%apos;s album cover. 
@property (copy, readonly) NSImage *artwork; // The property is deprecated and will never be set. Use the 'artwork url' instead. 
@property (copy, readonly) NSString *albumArtist; // That album artist of the track. 
@property (copy) NSString *spotifyUrl; // The URL of the track. 


@end 



/* 
* Standard Suite 
*/ 

// The application's top level scripting object. 
@interface SpotifyApplication (StandardSuite) 

@property (copy, readonly) NSString *name; // The name of the application. 
@property (readonly) BOOL frontmost; // Is this the frontmost (active) application? 
@property (copy, readonly) NSString *version; // The version of the application. 

@end 

Answer 1

それは実行可能な選択肢が判明、実際にこのような何かを行うことですサウンドボリューム "）