[opam-devel] Deserving for help on opam

[Daniel Bünzli]

On Wednesday, 8 March 2017 at 07:24, 人类的好朋友. wrote:
> I got the same problem when i use OS X runing ocamlfind install ,i checked the conf and find that the meta file is just there in the default dictionary.
> I have been caught in this problem for about two weeks, I really want someone to help me out...

What is the exact opam invocation you are using ? Yojson installs fine here. Maybe try to do:

 opam update
 opam install yojson



Also could you please report the output of:  

 opam config report  

(please don't send images, cut and paste the output text)

Best,  

Daniel