https://developers.weixin.qq.com/doc/oplatform/Mobile_App/FAQ/iOS.html

通过app跳转到微信小程序进行订单支付，拉起小程序失败并报错

日志输出如下：

微信日志： wxlog:send req[<WXLaunchMiniProgramReq: 0x2808843c0>], appID:wx5d79b92de114e3df, universalLink:https://fjxeb.share2dlink.com/, sdkVersion:1.8.7.1

微信日志： wxlog:LaunchMiniProgram todata extDic=(null)

微信日志： wxlog:set property list

微信日志： wxlog:Error:fail to load Keychain status:-25300, keyData null:1

微信日志： wxlog:token[(null)] is null

微信日志： wxlog:launch app with ul only success

微信日志： wxlog:launch app with universal link, ret:1

微信日志： wxlog:req:<WXLaunchMiniProgramReq: 0x2808843c0>, cid:73ae20d897c475fdf7c8a796af98db4bbe9ce4aa

微信日志： wxlog:Error:fail to delete Keychain before add status:-25300

微信日志： wxlog:Error:set token fail, errCode:6, errLog:fail to add Keychain status:-25299

微信日志： wxlog:Error:check or record token fail, error:Error Domain=WXOpenSDKRefreshTokenError Code=6 "fail to add Keychain status:-25299" UserInfo={NSLocalizedDescription=fail to add Keychain status:-25299}

微信日志： wxlog:delay launch wx with refresh token fail

微信日志： wxlog:Error:fail to load Keychain status:-25300, keyData null:1

微信日志： wxlog:token[(null)] is null

微信日志： wxlog:set property list

微信日志： wxlog:launch app with ul only success

微信日志： wxlog:openURL success:1, url:https://help.wechat.com/app/wx5d79b92de114e3df/refreshTokenFail/?bundleID=com.gnssgis.luxingtong&isShare=0&errCode=6&errMsg=fail%20to%20add%20Keychain%20status%3A-25299&wechat_app_bundleId=com.gnssgis.luxingtong