为授权的小程序帐号上传小程序代码时，上传参数格式如下：

{"user_version":"1.0.0","user_desc":"进行小程序代码提交测试","ext_json":{"extEnable":true,"extAppid":"wx2fae91d5871b2286","directCommit":false,"extPages":{"pages/logs/logs":{"navigationBarTitleText":"logs"}},"window":{"backgroundTextStyle":"light","navigationBarBackgroundColor":"#fff","navigationBarTitleText":"Demo","navigationBarTextStyle":"black"},"tabBar":{"list":[{"pagePath":"pages/index/index","text":"首页"},{"pagePath":"pages/logs/logs","text":"日志"}]},"networkTimeout":{"request":10000,"downloadFile":10000},"navigateToMiniProgramAppIdList":["wx2fae91d5871b2286"]},"template_id":"0"}

总是收到提示为:{"errcode":47001,"errmsg":"data format error hint: [kU.EwA0844c393]"}

不太明白哪里格式出现了错误，通过格式化工具解析也并未发现问题，需要将ext_json字段换成字符串吗？还是我上传参数里面配置有问题