navminiprogram:function(){     wx.navigateToMiniProgram({       shortLink: "#小程序://群接龙/rR2o6K6t2LwTkSu",       success(res){         console.log("success");       },       fail(err){          console.log(err);       }     }); 结果报错： {errMsg:"navigateToMiniProgram:fail parameter error: parameter.appId should be String instead of Undefined;"}