iOS 编译成功 运行失败

[Muriel0603]

‘null’ is not a supported event type for blemodule. supported events are 'null'

[Muriel0603]

• (void)initialize
  {
  if (self != [RCTEventEmitter class]) {
  RCTAssert(RCTClassOverridesInstanceMethod(self, @selector(supportedEvents)),
  @"You must override the supportedEvents method of %@", self);
  }
  }

• (NSArray<NSString *> *)supportedEvents
  {
  return nil;
  }

RCTEventEmitter.m 貌似这里返回了nil 的缘故 ？？？？？？？