先上个[官网]学习React Native(https://reactnative.cn/docs/0.51/getting-started.html)

RCTSRWebSocket.m 报错

1. 错误位置一：

SecRandomCopyBytes(kSecRandomDefault, keyBytes.length, keyBytes.mutableBytes);

解决方案：

(void)SecRandomCopyBytes(kSecRandomDefault, keyBytes.length, keyBytes.mutableBytes);

1. 错误位置二：

SecRandomCopyBytes(kSecRandomDefault, sizeof(uint32_t), (uint8_t *)mask_key)

解决方案：

int result = SecRandomCopyBytes(kSecRandomDefault, sizeof(uint32_t), (uint8_t *)mask_key);
assert(result == 0);