Incompatible versions issue : unable to use Lambda Soup in Ocaml 4.11

Learning
1

I just did a opam install lambdasoup. When I open utop and try a #require"lambdasoup", I get the following error message :


Type #utop_help for help about using utop.

─( 11:06:00 )─< command 0 >──────────────────────────────────────────────────────────────────────────────────{ counter: 0 }─
utop # #require "lambdasoup";;
The files /Users/jakezkerrien/.opam/4.11.0/lib/uutf/uutf.cma
and /Users/ewandelanoy/Teuliou/OCaml/Ordinary/_build/uutf.cmo
disagree over interface Uutf
The files /Users/jakezkerrien/.opam/4.11.0/lib/markup/markup.cma
and /Users/ewandelanoy/Teuliou/OCaml/Ordinary/_build/uutf.cmo
disagree over interface Uutf
The files /Users/jakezkerrien/.opam/4.11.0/lib/lambdasoup/soup.cma
and /Users/ewandelanoy/Teuliou/OCaml/Ordinary/_build/uutf.cmo
disagree over interface Uutf

How can I fix this ?

2

I would start from reinstalling lambdasoup, markup and uutf…

3

I did opam reinstall uutf followed by opam reinstall markup followed by opam reinstall lambdasoup and the error message stays the same

4

You can also try to clean build directory of the project you are trying to build and try again.

5

I did rm -rf ~/.opam/4.11.0/lib/uutf ~/.opam/4.11.0/lib/markup ~/.opam/4.11.0/lib/lambdasoup followed by opam reinstall uutf followed by opam reinstall markup followed by opam reinstall lambdasoup and the error message stays the same.

6

I meant to do rm -fr /Users/ewandelanoy/Teuliou/OCaml/Ordinary/_build

7

I finally found out what went wrong : I has a homemade module called Uutf that conflicted with the Uutf from the Lambda Soup library. I renamed my homemade module and now everything works fine.

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