Flutter IOS - Should i have to get a REAL IOS device to upload appstore?

问题

i spent 7 days to try to resolve Flutter IOS build issue. please help me

i found similar question with my problem. but there is no answer yet

related issue : Flutter iOS - Build a release version without a real device?

before to start,

I DON'T HAVE REAL IPHONE, i'm using ios simulator
I paid apple developer account
i already registered apple developer certificate. i can run my flutter app on ios simulator

i want to upload my ios app via testflight. so, i try to build it using

flutter build ios

and also tried to "archive" from XCode ("Generic IOS Device" is it.) if i chose IOS simulator(like IPHONE 11), "archive" tab never activated)

and then, i got an error that

Failed to create provisioning profile there are no device registered in your account on the developer website. plug in and select a device to have Xcode register it

No profiles for "com.xxx.xxx" were found Xcode couldn't find any IOS App development provisioning profiles matching "com.xxx.xxx"

I tried to make provisioning profile. but i had to input IOS device UDID. but i DO NOT have IOS device.

is there any way to resolve this error? i really don't know why this happen. i just want to use testflight and app store. please please help me..

I've done somethings to fix this issue.

Change appname(com.xxx.xxx) as unique one (like com.myownappnamedonotuseit.uniquenameonlyforme)
Register provisioning profile ( failed because of UDID, i don't have iphone also UDID)
a lot of stuff on internet (remove cache, re login apple account, regenerate certificate)

above things, never works.. please help me

====== reply to @Dipansh Khandelwal

actually, i tried it, but i can't register ios simulator as device