The following actions will be performed:
  - install jupyter 2.1.0

=-=- Gathering sources =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[jupyter: http] Command started
[jupyter: http] Command started
[jupyter.2.1.0] https://github.com/akabe/ocaml-jupyter/releases/download/v2.1.0/jupyter-2.1.0.tbz downloaded

=-=- Processing actions -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
[jupyter: jbuilder build] Command started
+ jbuilder "build" "-p" "jupyter" "-j" "4" (CWD=/home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/jupyter.2.1.0)
- Error: I couldn't find 'ocaml-migrate-parsetree.driver-main'.
- I need this library in order to use ppx rewriters.
- See the manual for details.
- Hint: opam install ocaml-migrate-parsetree
- Error: I couldn't find 'ocaml-migrate-parsetree.driver-main'.
- I need this library in order to use ppx rewriters.
- See the manual for details.
- Hint: opam install ocaml-migrate-parsetree
[ERROR] The compilation of jupyter failed at "jbuilder build -p jupyter -j 4".

#=== ERROR while installing jupyter.2.1.0 =====================================#
# opam-version         1.2.2+dd (3852ba0a7708d4dc37f64dd4cd00f873bf317ac0)
# os                   linux
# command              jbuilder build -p jupyter -j 4
# path                 /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/jupyter.2.1.0
# compiler             4.07.0+pr2051
# exit-code            1
# env-file             /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/jupyter.2.1.0/jupyter-8485.env
# stdout-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/jupyter.2.1.0/jupyter-8485.out
# stderr-file          /home/doligez/opamcheck/sandbox2/opamstate/4.07.0+pr2051/dotopam/4.07.0+pr2051/build/jupyter.2.1.0/jupyter-8485.out
### stdout ###
# Error: I couldn't find 'ocaml-migrate-parsetree.driver-main'.
# I need this library in order to use ppx rewriters.
# See the manual for details.
# Hint: opam install ocaml-migrate-parsetree
### stderr ###
# Error: I couldn't find 'ocaml-migrate-parsetree.driver-main'.
# I need this library in order to use ppx rewriters.
# See the manual for details.
# Hint: opam install ocaml-migrate-parsetree



=-=- Error report -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
The following actions failed
  - install jupyter 2.1.0
No changes have been performed

=-=- jupyter.2.1.0 troubleshooting =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
=> Please run for registration of ocaml-jupyter kernel:
=> 
=> $ jupyter kernelspec install --name ocaml-jupyter \
'opam install jupyter.2.1.0' failed.