MarsSeed [1] filed a deletion request for marytts [2]: Became abandonware since mid-2022, now broken at multiple points (unavailable Java dependencies, other legacy dependencies fail to build, and also Gradle execution itself exits with unspecified errors). [a] I recommend deletion. There are working alternative text-to-speech engines nowadays. [a]: https://github.com/marytts/marytts/issues [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/marytts/