recipe for target 'jsonfio.cmo' failed

[himanshugarg]

I installed json-wheel:-

$ opam install json-wheel
[NOTE] Package json-wheel is already installed (current version is 1.0.6).

But ocamlc won't see it:-

$ make all
make clean_byte 
make[1]: Entering directory '/home/hgarg/MaxTract/src/linearize'
rm -f ./*.cm[ioxa]
rm -f ./*.cmxa
rm -f ./*.[ao]
rm -f 
rm -f 
rm -f 
rm -f linearizer
make[1]: Leaving directory '/home/hgarg/MaxTract/src/linearize'
make all_targets
make[1]: Entering directory '/home/hgarg/MaxTract/src/linearize'
export OCAMLPATH=/lib; ocamlfind ocamlc -package json-wheel,unix,str -I ./ -I /lib  -c jsonfio.ml
ocamlfind: Package `json-wheel' not found
Makefile:155: recipe for target 'jsonfio.cmo' failed
make[1]: *** [jsonfio.cmo] Error 2
make[1]: Leaving directory '/home/hgarg/MaxTract/src/linearize'
Makefile:209: recipe for target 'all' failed
make: *** [all] Error 2

[himanshugarg]

Closed as this was unrelated to MaxTract