"404 Not Found" error when trying to access the url of my frontend canister after successfully deploying

This is most likely because of this change: [FOLLOW UP ON ITEM] New canisters will only be accessible through the icp0.io domain. Existing canisters will be accessible both through ic0.app and icp0.io

dfx before version 0.14.0 (which released yesterday) only prints the old URL under which your newly created canister is not accessible anymore. Simply change ic0.app to icp0.io and you should be good to go

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