ios - NSHTTPCookie なし

Question

ここに私のコードがあります

    let cookieProperties = [
        NSHTTPCookieOriginURL: Constants.baseUrl,
        NSHTTPCookiePath: "/",
        NSHTTPCookieName: "device_id",
        NSHTTPCookieValue: Constants.deviceId
    ]
    let cookiePropertiesVersion = [
        NSHTTPCookieOriginURL: Constants.baseUrl,
        NSHTTPCookiePath: "/",
        NSHTTPCookieName: "app_version_code",
        NSHTTPCookieValue: "50"
    ]

    let newCookie = NSHTTPCookie(properties: cookieProperties)
    let newCookieVersion = NSHTTPCookie(properties: cookiePropertiesVersion)
    cookieStorage.setCookie(newCookie!)
    cookieStorage.setCookie(newCookieVersion!)

エラーは次の行にあります

cookieStorage.setCookie(newCookie!)

newCookie は nil であり、

Optional 値のラップ解除中に予期せず nil が見つかりました

エラーが出る