折腾：
【已解决】Xcode编译出错：Module compiled with Swift 4.0.1 cannot be imported in Swift 3.2.3
期间，之前正常工作的代码现在出错：
if let httpBodyData = response.request?.httpBody {
let httpBodyJson = JSON(data: httpBodyData)
gLog.verbose(“httpBodyJson=\(httpBodyJson)”)
swift JSON Call can throw, but it is not marked with ‘try’ and the error is not handled
swift – swiftyjson – Call can throw, but it is marked with ‘try’ and the error is not handled – Stack Overflow
和自己的：
［已解决］Swift代码出错： Call can throw, but it is not marked with try and the error is not handled – 在路上
为何之前没问题，现在突然有问题了？
貌似swiftc编译器版本更新（要去严格了？）导致的？
改为：
do {
let httpBodyJson = JSON(data: httpBodyData)
gLog.verbose(“httpBodyJson=\(httpBodyJson)”)
} catch {
gLog.warning(“http body data to json failed”)
}
结果还是提示错误：
好像还是需要去加上try：
do {
let httpBodyJson = try JSON(data: httpBodyData)
gLog.verbose(“httpBodyJson=\(httpBodyJson)”)
} catch {
gLog.warning(“http body data to json failed”)
}
就可以了。
【总结】
代码：
let httpBodyJson = JSON(data: httpBodyData)
改为：
do {
let httpBodyJson = try JSON(data: httpBodyData)
gLog.verbose(“httpBodyJson=\(httpBodyJson)”)
} catch {
gLog.warning(“http body data to json failed”)
}
即可。
另外一处类似代码改为：
if let respJson = try? JSON(data: respData) {
gLog.verbose(“respJson=\(respJson)”)
}
也是可以的。
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