Artyom V. Poptsov schreef op zo 09-01-2022 om 23:53 [+0300]: > -              (uri (string-append > "https://bitbucket.org/asomov/snakeyaml/get/v" > +              (uri (string-append > "https://github.com/snakeyaml/snakeyaml" >                                    version ".tar.gz")) When I visit https://github.com/snakeyaml/snakeyaml1.18.tar.gz I get a 404. Are you sure about the URI?