wayland_client_ada 1.0.0

We encountered an error during the generation of documentation:
wayland_client_ada.gpr: info: Parsing "/home/chouteau/src/github/alire/docs.ada.dev/tmp/wayland_client_ada/1.0.0/wayland_ada_f8a9fe05/wayland_client_ada/wayland_client_ada.gpr"
wayland_client_ada.gpr: info: search path:
wayland_client_ada.gpr: info: /home/chouteau/src/github/alire/docs.ada.dev/tmp/wayland_client_ada/1.0.0/wayland_ada_f8a9fe05/wayland_client_ada
wayland_client_ada.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5
wayland_client_ada.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gprbuild_22.0.1_24dfc1b5
wayland_client_ada.gpr: info: /home/chouteau/src/github/alire/docs.ada.dev/tmp/wayland_client_ada/1.0.0/wayland_ada_f8a9fe05/wayland_client_ada/alire/cache/dependencies/wayland_ada_f8a9fe05/wayland_ada_scanner
wayland_client_ada.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5/x86_64-linux/share/gpr
wayland_client_ada.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5/x86_64-linux/lib/gnat
wayland_client_ada.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5/share/gpr
wayland_client_ada.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5/lib/gnat
wayland_ada_scanner.gpr:8:38: warning: object directory "build/obj/release" not found
wayland_ada_scanner.gpr:9:21: warning: exec directory "build/bin" not found
wayland_client_ada.gpr:13:38: warning: object directory "build/obj/development" not found
wayland_client_ada.gpr:14:24: warning: library directory "build/lib" not found
wayland_client_ada.gpr:12:32: error: "/home/chouteau/src/github/alire/docs.ada.dev/tmp/wayland_client_ada/1.0.0/wayland_ada_f8a9fe05/wayland_client_ada/src/protocols" is not a valid directory

raised GPR2.PROJECT_ERROR : cannot retrieve the sources
ERROR: Command ["gnatdoc4", "-P", "wayland_client_ada.gpr", "--output-dir", "/home/chouteau/src/github/alire/docs.ada.dev/crate/wayland_client_ada/1.0.0", "--front-matter", "crate: wayland_client_ada", "--no-subprojects"] exited with code 1