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ocaml-ppx / ocaml-migrate-parsetree

DEPRECATED. See https://ocaml.org/changelog/2023-10-23-omp-deprecation. Convert OCaml parsetrees between different major versions
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Could not build Tezos node which depends on ocaml-migrate-parsetree #87

Closed dimaa6 closed 4 years ago

dimaa6 commented 4 years ago

[ERROR] The sources of the following couldn't be obtained, aborting:

rmn30 commented 4 years ago

I also have this error. Looking at the metadata for release 1.4.0 in the opam-repository it looks like the release is from July 2019 but the v1.4.0 tag was made very recently by @diml . Maybe the tag was moved by mistake?

As a workaround I was able to install 1.3.1 using:

opam pin ocaml-migrate-parsetree 1.3.1

which was sufficient for me to install the package I wanted.

lindig commented 4 years ago

it is somewhat curious that a large number of packages in Opam seem to have broken checksums.

https://github.com/ocaml/opam-repository/issues/15298

A typical reason is that a file hosted by GitHub is re-compressed, which changes the checksum. Many of the affected packages are not hosted on GitHub, though. The current issue here is different: the source code actually changed.

P3tronius commented 4 years ago

You can also force install 1.4.0 using opam install ocaml-migrate-parsetree --no-checksums and the resume tezos's make build-deps

mseri commented 4 years ago

Omp 1.4.0 has been fixed later yesterday (https://github.com/ocaml/opam-repository/issues/15281). I recommend not to use —no-checkums, in this case the tarball was changed by mistake and you would have installed a different library version than expected. In general it is safer to revert to the previous version with correct checksum as suggested by @rmn30

ghost commented 4 years ago

So in the end what happened is that I messed up and accidentally replaced the 1.4.0 tarball in place on github (cf https://github.com/ocaml/opam-repository/pull/15280#issuecomment-554959337). The original tarball has now been restored on ocaml-ppx/ocaml-migrate-parsetree as well as the original checksum in the opam-repository. So all is good now.