docs.ada.dev Crate gnat_external

gnat_external 9.4.0

We encountered an error during the generation of documentation: 
gnat_external.gpr: info: Parsing "/home/chouteau/src/github/alire/docs.ada.dev/tmp/gnat_external/9.4.0/gnat_external_9.4.0_external/gnat_external.gpr"
gnat_external.gpr: info: search path:
gnat_external.gpr: info: /home/chouteau/src/github/alire/docs.ada.dev/tmp/gnat_external/9.4.0/gnat_external_9.4.0_external
gnat_external.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5
gnat_external.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gprbuild_22.0.1_24dfc1b5
gnat_external.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5/x86_64-linux/share/gpr
gnat_external.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5/x86_64-linux/lib/gnat
gnat_external.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5/share/gpr
gnat_external.gpr: info: /home/chouteau/.config/alire/cache/dependencies/gnat_native_12.1.2_66b989b5/lib/gnat
gnat_external.gpr: error: project file "/home/chouteau/src/github/alire/docs.ada.dev/tmp/gnat_external/9.4.0/gnat_external_9.4.0_external/gnat_external.gpr" not found

raised GPR2.PROJECT_ERROR : /home/chouteau/src/github/alire/docs.ada.dev/tmp/gnat_external/9.4.0/gnat_external_9.4.0_external/gnat_external.gpr: fatal error, cannot load the project tree
ERROR: Command ["gnatdoc4", "-P", "gnat_external.gpr", "--output-dir", "/home/chouteau/src/github/alire/docs.ada.dev/crate/gnat_external/9.4.0", "--front-matter", "crate: gnat_external", "--no-subprojects"] exited with code 1