'Keep getting these errors while using homebrew

Im trying to download QEMU with homebrew by using this command:

brew install qemu

This doesn't work. It gives me these errors:

==> Searching for similarly named formulae...
Error: No similarly named formulae found.

==> Searching for a previously deleted formula (in the last month)...
Error: No previously deleted formula found.

==> Searching taps on GitHub...
Error: No formulae found in taps.

Using Mac. Don't have Xcode installed. do I need it? help, please.



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