错误: 找不到符号CallBackFunction

[AttITuder]

.java:27: 错误: 找不到符号
private Map<String, CallBackFunction> responseCallbacks = new HashMap<>();
^
符号: 类 CallBackFunction
位置: 类 BridgeHelper
/Users/dpc/Desktop/code/JsBridge/library/src/main/java/com/github/lzyzsd/jsbridge/BridgeHelper.java:28: 错误: 找不到符号
private Map<String, BridgeHandler> messageHandlers = new HashMap<>();
^
符号: 类 BridgeHandler
位置: 类 BridgeHelper
/Users/dpc/Desktop/code/JsBridge/library/src/main/java/com/github/lzyzsd/jsbridge/BridgeHelper.java:29: 错误: 找不到符号
private BridgeHandler defaultHandler = new DefaultHandler();
^
符号: 类 BridgeHandler
位置: 类 BridgeHelper
/Users/dpc/Desktop/code/JsBridge/library/src/main/java/com/github/lzyzsd/jsbridge/BridgeHelper.java:31: 错误: 找不到符号
private List startupMessage = new ArrayList<>();
^

[jacky1234]

我也是的

[kuaitao]

x打开就是报错的