i have the same issue, i have updated to xcode 12.1 and catalina 10.15.7 and when i execute 'Product->Archive' it show build succesful , and then xcode close itself , then i check the folder /Users/<your user name>/Library/Developer/Xcode/Archives and there is some folders there thats is been created , i alrady give permissions as a user suggest but still not show anything in windows->organizer. any suggestion?

last week i updated too (xcode 12.1 and catalina 10.15.7), and im running the same issue, if you find any fix please let me know , thanks

Hi DreArg, i try your solution , uninstall, install xcode, give permission to Archives folder, i check the 3 bullets point of TN2215 then shut down but the problem persist :/ , i really dont know what else to try, since i need to publish my app . i will appreciate any other suggestion ,thanks

hi, finally its working :) i did all the steps that DreArg says, but also what this fix suggest : https://stackoverflow.com/questions/29548538/xcode-6-3-crash-while-archiving-a-project . if someones is in same issues it might help .

hi, im having this same issue now with Xcode 12.2 , and i have plenty free space in my hard drive. was you able to solve it?

apparently is an issue of the emulator, when i pick another emulator(iPhone 12) it work. still don't know why it stop working on iPhone 11 emulator when few days ago it worked fine