Dune dependency computing

Hi,
I try to move a project from dune 1.6.3 to dune 1.7. This dune is used to build some embedded cmis files:

(rule
 (targets embedded_grading_cmis.ml)
 (deps (:compiler-cmis
        %{ocaml-config:standard_library}/compiler-libs/longident.cmi
        %{ocaml-config:standard_library}/compiler-libs/asttypes.cmi
        %{ocaml-config:standard_library}/compiler-libs/ast_helper.cmi
        %{ocaml-config:standard_library}/compiler-libs/ast_mapper.cmi
        %{ocaml-config:standard_library}/compiler-libs/parsetree.cmi
        %{ocaml-config:standard_library}/compiler-libs/location.cmi
        %{ocaml-config:standard_library}/compiler-libs/parse.cmi)
       (:generated-cmis
        ../ppx-metaquot/.ty.objs/ty.cmi
        ../ppx-metaquot/.fun_ty.objs/fun_ty.cmi
        .testing.objs/introspection_intf.cmi
        .learnocaml_report.objs/learnocaml_report.cmi
        .testing.objs/test_lib.cmi
        .testing.objs/mutation_test.cmi))
 (action (with-stdout-to %{targets}
           (run ocp-ocamlres -format ocamlres %{compiler-cmis} %{generated-cmis})))
)

(library
 (name grading)
 (wrapped false)
 (modes byte)
 (library_flags :standard -linkall)
 (libraries testing
            learnocaml_ppx_metaquot
            ocplib-ocamlres.runtime
            embedded_cmis
            ocplib_i18n
            learnocaml_report)
 (modules Embedded_grading_cmis
          Grading)
 (preprocess (per_module ((pps ppx_ocplib_i18n learnocaml_ppx_metaquot) Grading)))
)

With the 1.6.3 version everything works great but with the 1.7 version, I get this error and I don’t understand why:

File "src/grader/dune", line 98, characters 0-954:
 98 | (rule
 99 |  (targets embedded_grading_cmis.ml)
100 |  (deps (:compiler-cmis
.....115 |  (action (with-stdout-to %{targets}
116 |            (run ocp-ocamlres -format ocamlres %{compiler-cmis} %{generated-cmis})))
117 | )
Error: No rule found for
src/grader/.learnocaml_report.objs/learnocaml_report.cmi

Does everyone know if there is a way to fix this ?

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