运行不出来

[liuhuawen]

/Users/guest/workspace/rn_rank/rn_rank/node_modules/react-native/Libraries/WebSocket/RCTSRWebSocket.m:494:3: error: ignoring return value of function declared with
warn_unused_result attribute [-Werror,-Wunused-result]
SecRandomCopyBytes(kSecRandomDefault, keyBytes.length, keyBytes.mutableBytes);
^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/guest/workspace/rn_rank/rn_rank/node_modules/react-native/Libraries/WebSocket/RCTSRWebSocket.m:1334:5: error: ignoring return value of function declared with
warn_unused_result attribute [-Werror,-Wunused-result]
SecRandomCopyBytes(kSecRandomDefault, sizeof(uint32_t), (uint8_t *)mask_key);
^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 errors generated.

** BUILD FAILED **
报这个错

[cwinl]

RCTWebSocket-->Project-->RCTWebSocket-->build setting-->apple clang-custom compiler flags-->other warning flags-->去掉 -Werror

编辑 RCTScrollView.m
查找 @implementation RCTCustomScrollView
改为：

@implementation RCTCustomScrollView
{
__weak UIView *_dockedHeaderView;
RCTRefreshControl *_refreshControl;
}

参考：
https://www.jianshu.com/p/e3ddb681863f

[cwinl]

只有ios的有上面错误，即使修改了，运行也是红屏
android的运行正常