ocaml-lsp-server 1.6.1

Error log

The package failed to build. The error log from opam follows.

[NOTE] Package dune is already installed (current version is 3.17.2).
[NOTE] Package ocamlfind is already installed (current version is 1.9.8).
The following actions will be performed:
=== install 9 packages
  - install csexp               1.5.2
  - install dot-merlin-reader   4.5
  - install dune-build-info     3.17.2
  - install ocaml-lsp-server    1.6.1
  - install pp                  2.0.0
  - install ppx_yojson_conv_lib v0.15.0
  - install result              1.5
  - install seq                 base
  - install yojson              2.2.2

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved csexp.1.5.2  (cached)
-> installed csexp.1.5.2
-> retrieved dot-merlin-reader.4.5  (cached)
-> retrieved dune-build-info.3.17.2  (cached)
-> retrieved ocaml-lsp-server.1.6.1  (cached)
-> retrieved pp.2.0.0  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved ppx_yojson_conv_lib.v0.15.0  (cached)
-> retrieved result.1.5  (cached)
-> retrieved yojson.2.2.2  (cached)
-> installed pp.2.0.0
-> installed result.1.5
-> installed dune-build-info.3.17.2
-> installed yojson.2.2.2
-> installed ppx_yojson_conv_lib.v0.15.0
-> installed dot-merlin-reader.4.5
[ERROR] The compilation of ocaml-lsp-server.1.6.1 failed at "dune build -j 31 ocaml-lsp-server.install --release".

#=== ERROR while compiling ocaml-lsp-server.1.6.1 =============================#
# context              2.3.0 | linux/x86_64 | ocaml-base-compiler.4.12.1 | file:///src
# path                 ~/.opam/4.12/.opam-switch/build/ocaml-lsp-server.1.6.1
# command              ~/.opam/4.12/bin/dune build -j 31 ocaml-lsp-server.install --release
# exit-code            1
# env-file             ~/.opam/log/ocaml-lsp-server-113-a5ddea.env
# output-file          ~/.opam/log/ocaml-lsp-server-113-a5ddea.out
### output ###
# (cd _build/default && /home/opam/.opam/4.12/bin/ocamlopt.opt -w -40 -w -a -alert -all -g -I ocaml-lsp-server/vendor/dune-rpc/private/.dune_rpc_private.objs/byte -I ocaml-lsp-server/vendor/dune-rpc/private/.dune_rpc_private.objs/native -I /home/opam/.opam/4.12/lib/csexp -I /home/opam/.opam/4.12/lib/pp -I vendor/stdune-unstable/.stdune.objs/byte -I vendor/stdune-unstable/.stdune.objs/native -intf-suffix .ml -no-alias-deps -open Dune_rpc_private__ -o ocaml-lsp-server/vendor/dune-rpc/private/.dune_rpc_private.objs/native/dune_rpc_private.cmx -c -impl ocaml-lsp-server/vendor/dune-rpc/private/dune_rpc_private.ml)
# File "submodules/dune/otherlibs/dune-rpc/private/dune_rpc_private.ml", line 231, characters 8-10:
# Error: This variant pattern is expected to have type 'a Pp.Ast.t
#        The constructor Ok does not belong to type Pp.Ast.t



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build ocaml-lsp-server 1.6.1
+- 
+- The following changes have been performed
| - install csexp               1.5.2
| - install dot-merlin-reader   4.5
| - install dune-build-info     3.17.2
| - install pp                  2.0.0
| - install ppx_yojson_conv_lib v0.15.0
| - install result              1.5
| - install seq                 base
| - install yojson              2.2.2
+- 
# To update the current shell environment, run: eval $(opam env)

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/4.12/.opam-switch/backup/state-20250206041511.export"