Well I hunted down different paths for a solution and couldn't find
anything, even manually specifying the ocamlfind version didn't work. Cudf
remote proxy also selected the same dependent package. And all attempted
versions have identical errors.

I can't continue development using ocamljava until I can install that
package. I don't know how to continue hunting this error. Basically, the
library that I'm developing uses -package bytes in the command line, so I
presume that base.bytes is the opam package that it's talking about.

On Sat, Jul 18, 2015 at 4:04 PM, Kenneth Adam Miller <
kennethadammiller@gmail.com> wrote:

> Yeah, in addition, I should note that ocj-ocamlfind has been updated
> upstream as well, and that I can't pull that without being able to update
> and upgrade.
>
> On Sat, Jul 18, 2015 at 4:01 PM, Kenneth Adam Miller <
> kennethadammiller@gmail.com> wrote:
>
>> Thanks for your reply!
>>
>> Yeah that's possible; I was trying to update and that was giving me an
>> error as well.
>>
>> opam update
>> ...
>> [ERROR] At ~/.opam/repo/default/packages/pxp/pxp.1.2.7/opam:4:52:
>>   Not a recognised version-control URL
>>
>> I don't know what that's about either. Do you think possibly I  just need
>> to get update to succeed in order that dependency computation move forward
>> correctly? I'd like to at least rule out not repeating anything or dealing
>> with version issues with I could be on the edge.
>>
>> On Sat, Jul 18, 2015 at 3:44 PM, Gabriel Scherer <
>> gabriel.scherer@gmail.com> wrote:
>>
>>> This looks like a problem with the dependency computation algorithm.
>>> If you have not installed an external CUDF solver such as aspcud
>>> (which does a better job than the internal solver of OPAM), it may
>>> solve such spurious dependency issues.
>>>   https://opam.ocaml.org/doc/Specifying_Solver_Preferences.html
>>>
>>> (Or use the remove server farm
>>> http://cudf-solvers.irill.org/index.html if you don't want to install
>>> an external solver and don't mind your install requests to be sent
>>> over the network)
>>>
>>> On Sat, Jul 18, 2015 at 9:36 PM, Kenneth Adam Miller
>>> <kennethadammiller@gmail.com> wrote:
>>> > There are duplicate ocamlfind specific opam packages:
>>> >
>>> > opam search ocamlfind
>>> > ...
>>> > ocamlfind-ocj             --  A library manager for OCaml
>>> > ocj-ocamlfind             --  A library manager for OCaml
>>> >
>>> >
>>> >
>>> > In a second note, I have to install the library base-bytes. ocamlfind
>>> > 1.5.5-ocp is required by base-bytes, when a non-ocp install of
>>> ocamlfind was
>>> > working fine. ocamlfind 1.5.5-ocp blows up with the following errors:
>>> >
>>> > #=== ERROR while installing ocamlfind.1.5.5+ocp1
>>> > ==============================#
>>> > # opam-version 1.2.0
>>> > # os           linux
>>> > # command      make all
>>> > # path
>>> >
>>> /home/kennethadammiller/.opam/ocamljava-2.0-alpha3/build/ocamlfind.1.5.5+ocp1
>>> > # compiler     ocamljava-2.0-alpha3
>>> > # exit-code    2
>>> > # env-file
>>> >
>>> /home/kennethadammiller/.opam/ocamljava-2.0-alpha3/build/ocamlfind.1.5.5+ocp1/ocamlfind-12342-e7966f.env
>>> > # stdout-file
>>> >
>>> /home/kennethadammiller/.opam/ocamljava-2.0-alpha3/build/ocamlfind.1.5.5+ocp1/ocamlfind-12342-e7966f.out
>>> > # stderr-file
>>> >
>>> /home/kennethadammiller/.opam/ocamljava-2.0-alpha3/build/ocamlfind.1.5.5+ocp1/ocamlfind-12342-e7966f.err
>>> > ### stdout ###
>>> > # ...[truncated]
>>> > #           ocaml_args.cmo frontend.cmo
>>> > # if [ "false" = "true" ]; then                 \
>>> > # cp topfind.ml.in topfind.ml;                             \
>>> > # else                                                             \
>>> > # sed -e '/PPXOPT_BEGIN/,/PPXOPT_END/ d' topfind.ml.in     \
>>> > # > topfind.ml ;                                   \
>>> > # fi
>>> > # ocamlc -I +compiler-libs -c topfind.mli
>>> > # ocamlc -I +compiler-libs -g -c topfind.ml
>>> > # make[1]: Leaving directory
>>> >
>>> `/home/kennethadammiller/.opam/ocamljava-2.0-alpha3/build/ocamlfind.1.5.5+ocp1/src/findlib'
>>> > ### stderr ###
>>> > # File "itest-aux/ppx.ml", line 1, characters 0-25:
>>> > # Error: Unbound value Toploop.preprocess_phrase
>>> > # Makefile:160: depend: No such file or directory
>>> > # File "topfind.ml", line 1:
>>> > # Error: The files
>>> >
>>> /home/kennethadammiller/.opam/ocamljava-2.0-alpha3/lib/ocaml/compiler-libs/toploop.cmi
>>> > #        and
>>> >
>>> /home/kennethadammiller/.opam/ocamljava-2.0-alpha3/lib/ocaml/compiler-libs/parsetree.cmi
>>> > #        make inconsistent assumptions over interface Warnings
>>> > # make[1]: *** [topfind.cmo] Error 2
>>> > # make: *** [all] Error 2
>>> >
>>> >
>>> > =-=- Error report
>>> > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>>> > The following failed
>>> >  - install   ocamlfind.1.5.5+ocp1
>>> > Due to the errors, the following have been cancelled
>>> >  - install   base-bytes.base
>>>
>>
>>
>