## SOLUTION ##
preamble: 
property: version-lag: nat = [0], pinned: bool = [false], installed-root: bool = [false], reinstall: bool = [false], opam-version: string, opam-name: string

package: ppx.ast
version: 3
depends: jbuilder >= 2 , ocaml.compiler.libs >= 1 , ocaml.compiler.libs < 3 , ocaml.migrate.parsetree >= 6
conflicts: ppx.ast
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.2
opam-name: ppx_ast

package: cppo.ocamlbuild
version: 1
depends: jbuilder >= 10 , ocamlbuild , cppo >= 15
conflicts: cppo.ocamlbuild
installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.6.0
opam-name: cppo_ocamlbuild

package: ppx.type.conv
version: 13
depends: jbuilder >= 4 , ppx.core >= 11 , ppx.core < 15 , ppx.driver >= 13 , ppx.driver < 17 , ppx.metaquot >= 1 , ppx.metaquot < 3 , ocaml.migrate.parsetree >= 1
conflicts: ppx.type.conv , ppx.deriving < 10
installed: true
was-installed: true
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.0
opam-name: ppx_type_conv
version-lag: 1

package: camomile
version: 4
depends: jbuilder >= 7 , cppo , base.bytes
conflicts: camomile
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 0.8.7
opam-name: camomile

package: magic.mime
version: 4
depends: jbuilder >= 9
conflicts: magic.mime
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.1.0
opam-name: magic-mime

package: owee
version: 2
depends: ocamlfind
conflicts: owee
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 0.2
opam-name: owee

package: topkg
version: 12
depends: ocamlfind >= 17 , ocamlbuild , result
conflicts: topkg
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 0.9.1
opam-name: topkg

package: fieldslib
version: 26
depends: base >= 1 , base < 6 , jbuilder >= 4 , ppx.driver >= 13 , ppx.driver < 17 , ocaml.migrate.parsetree >= 1
conflicts: fieldslib
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.0
opam-name: fieldslib

package: base64
version: 5
depends: base.bytes , jbuilder >= 10
conflicts: base64
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 2.2.0
opam-name: base64

package: base.bytes
version: 1
depends: ocamlfind >= 12
conflicts: base.bytes
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: base
opam-name: base-bytes

package: conduit
version: 32
depends: ocamlfind , ocamlbuild , ppx.driver , ppx.deriving , ppx.optcomp >= 3 , ppx.sexp.conv , sexplib , stringext , uri , result , logs >= 2 , ipaddr >= 10 , lwt
conflicts: conduit , lwt < 20 , async.ssl < 5 , async < 52 , mirage.flow.lwt < 2 , mirage.types.lwt < 13 , dns < 26 , tls < 6 , vchan < 11 , nocrypto < 6
installed: true
pinned: false
installed-root: false
reinstall: false
opam-version: 0.15.4
opam-name: conduit
version-lag: 1

package: ppx.traverse.builtins
version: 2
depends: jbuilder >= 4
conflicts: ppx.traverse.builtins
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.0
opam-name: ppx_traverse_builtins

package: ppx.core
version: 13
depends: base >= 5 , base < 6 , jbuilder >= 2 , ocaml.compiler.libs >= 1 , ocaml.compiler.libs < 3 , ppx.ast >= 3 , ppx.ast < 4 , ppx.traverse.builtins >= 1 , ppx.traverse.builtins < 3 , stdio >= 3 , stdio < 4
conflicts: ppx.core
installed: true
was-installed: true
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.2
opam-name: ppx_core
version-lag: 1

package: base.unix
version: 1
conflicts: base.unix
installed: true
was-installed: true
keep: version
version-lag: 0
pinned: false
reinstall: false
opam-version: base
opam-name: base-unix
installed-root: true

package: cohttp
version: 47
depends: base.bytes , ocamlfind , ocamlbuild , cmdliner >= 4 , re , uri >= 19 , fieldslib , sexplib , conduit >= 22 , conduit < 34 , ppx.fields.conv , ppx.deriving , ppx.sexp.conv , stringext , base64 >= 3 , magic.mime , fmt , logs , lwt
conflicts: cohttp , async < 52 , lwt < 16 , js.of.ocaml < 13 , js.of.ocaml >= 17
installed: true
pinned: false
installed-root: false
reinstall: false
opam-version: 0.22.0
opam-name: cohttp
version-lag: 1

package: raw.spacetime
version: 1
depends: ocamlfind >= 20
conflicts: raw.spacetime
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: base
opam-name: raw_spacetime

package: ppx.optcomp
version: 12
depends: jbuilder >= 4 , ppx.core >= 11 , ppx.core < 15
conflicts: ppx.optcomp
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.0
opam-name: ppx_optcomp

package: ppx.sexp.conv
version: 14
depends: jbuilder >= 4 , ppx.core >= 11 , ppx.core < 15 , ppx.driver >= 13 , ppx.driver < 17 , ppx.metaquot >= 1 , ppx.metaquot < 3 , ppx.type.conv >= 12 , ppx.type.conv < 15 , sexplib >= 51 , sexplib < 55 , ocaml.migrate.parsetree >= 1
conflicts: ppx.sexp.conv
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.0
opam-name: ppx_sexp_conv

package: jsonm
version: 3
depends: ocamlfind , ocamlbuild , topkg , uchar , uutf >= 2
conflicts: jsonm
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.0.1
opam-name: jsonm

package: ppx.driver
version: 16
depends: jbuilder >= 7 , ppx.core >= 13 , ppx.core < 15 , ppx.optcomp >= 11 , ppx.optcomp < 13 , ocaml.migrate.parsetree >= 4 , ocamlbuild
conflicts: ppx.driver
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.2
opam-name: ppx_driver

package: jbuilder
version: 16
depends: ocamlfind
conflicts: jbuilder
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.0+beta16
opam-name: jbuilder

package: ppx.metaquot
version: 2
depends: jbuilder >= 4 , ppx.core >= 11 , ppx.core < 15 , ppx.driver >= 13 , ppx.driver < 17 , ppx.traverse.builtins >= 1 , ppx.traverse.builtins < 3 , ocaml.migrate.parsetree >= 1
conflicts: ppx.metaquot
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.0
opam-name: ppx_metaquot

package: ipaddr
version: 14
depends: jbuilder >= 7 , base.bytes , ppx.sexp.conv >= 14 , base.unix
conflicts: ipaddr
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 2.8.0
opam-name: ipaddr

package: stringext
version: 11
depends: jbuilder >= 10 , base.bytes
conflicts: stringext
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.5.0
opam-name: stringext

package: ppx.deriving
version: 13
depends: ocamlbuild , ocamlfind >= 16 , cppo , cppo.ocamlbuild , ocaml.migrate.parsetree , ppx.derivers , ppx.tools >= 6 , result
conflicts: ppx.deriving
installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 4.2.1
opam-name: ppx_deriving

package: ocaml.migrate.parsetree
version: 7
depends: result , ocamlfind , jbuilder >= 10
conflicts: ocaml.migrate.parsetree
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.0.7
opam-name: ocaml-migrate-parsetree

package: lwt.react
version: 3
depends: jbuilder >= 10 , lwt >= 22 , react >= 1
conflicts: lwt.react
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.1.0
opam-name: lwt_react

package: prof.spacetime
version: 1
depends: cmdliner , cohttp < 49 , conduit , ocamlfind , yojson , lwt , lambda.term , spacetime.lib < 2
conflicts: prof.spacetime
installed: true
pinned: false
installed-root: false
reinstall: false
opam-version: 0.1.0
opam-name: prof_spacetime
version-lag: 1

package: base.threads
version: 1
conflicts: base.threads
installed: true
was-installed: true
keep: version
version-lag: 0
pinned: false
reinstall: false
opam-version: base
opam-name: base-threads
installed-root: true

package: ppx.derivers
version: 1
depends: jbuilder >= 7
conflicts: ppx.derivers
installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.0
opam-name: ppx_derivers

package: ppx.fields.conv
version: 9
depends: fieldslib >= 25 , fieldslib < 27 , jbuilder >= 4 , ppx.core >= 11 , ppx.core < 15 , ppx.driver >= 13 , ppx.driver < 17 , ppx.metaquot >= 1 , ppx.metaquot < 3 , ppx.type.conv >= 12 , ppx.type.conv < 15 , ocaml.migrate.parsetree >= 1
conflicts: ppx.fields.conv
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.0
opam-name: ppx_fields_conv

package: cppo
version: 15
depends: jbuilder >= 10 , base.bytes , base.unix
conflicts: cppo
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.6.0
opam-name: cppo

package: ppx.tools
version: 9
depends: ocamlfind >= 9
conflicts: ppx.tools
installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 5.1+4.06.0
opam-name: ppx_tools

package: base
version: 5
depends: jbuilder >= 7 , sexplib >= 54 , sexplib < 55
conflicts: base
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.4
opam-name: base

package: react
version: 2
depends: ocamlfind , ocamlbuild , topkg >= 11
conflicts: react
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.2.1
opam-name: react

package: result
version: 3
conflicts: result
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.2
opam-name: result

package: conf.m4
version: 1
conflicts: conf.m4
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1
opam-name: conf-m4

package: zed
version: 5
depends: jbuilder >= 9 , base.bytes , camomile >= 1 , react
conflicts: zed
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.6
opam-name: zed

package: biniou
version: 4
depends: conf.which , jbuilder , easy.format
conflicts: biniou
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.2.0
opam-name: biniou

package: re
version: 14
depends: ocamlfind , ocamlbuild , base.bytes
conflicts: re
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.7.1
opam-name: re

package: sexplib
version: 54
depends: jbuilder >= 10 , num
conflicts: sexplib
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.3
opam-name: sexplib

package: astring
version: 2
depends: ocamlfind , ocamlbuild , topkg
conflicts: astring
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 0.8.3
opam-name: astring

package: uri
version: 23
depends: base.bytes , ocamlfind , jbuilder >= 7 , ppx.sexp.conv >= 14 , re , sexplib >= 52 , stringext >= 7
conflicts: uri
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.9.5
opam-name: uri

package: logs
version: 4
depends: ocamlfind , ocamlbuild , topkg , result , lwt , cmdliner , fmt
conflicts: logs , cmdliner < 8
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 0.6.2
opam-name: logs

package: uchar
version: 1
depends: ocamlbuild
conflicts: uchar
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 0.0.2
opam-name: uchar

package: lwt
version: 23
depends: cppo >= 4 , jbuilder >= 10 , ocamlfind >= 9 , ocaml.migrate.parsetree , ppx.tools.versioned , result , base.unix , base.threads
conflicts: lwt
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 3.1.0
opam-name: lwt

package: spacetime.lib
version: 1
depends: ocamlfind , owee , raw.spacetime , base.bigarray , base.unix
conflicts: spacetime.lib
installed: true
pinned: false
installed-root: false
reinstall: false
opam-version: 0.1.0
opam-name: spacetime_lib
version-lag: 1

package: ocaml.compiler.libs
version: 2
depends: jbuilder >= 4
conflicts: ocaml.compiler.libs
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.0
opam-name: ocaml-compiler-libs

package: ppx.tools.versioned
version: 5
depends: ocamlfind >= 9 , ocaml.migrate.parsetree >= 3
conflicts: ppx.tools.versioned
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 5.0.1
opam-name: ppx_tools_versioned

package: fmt
version: 6
depends: ocamlfind , ocamlbuild , topkg >= 11 , result , uchar , cmdliner , base.unix
conflicts: fmt , cmdliner < 8
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 0.8.4
opam-name: fmt

package: easy.format
version: 5
depends: jbuilder
conflicts: easy.format
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.3.0
opam-name: easy-format

package: base.bigarray
version: 1
conflicts: base.bigarray
installed: true
was-installed: true
keep: version
version-lag: 0
pinned: false
reinstall: false
opam-version: base
opam-name: base-bigarray
installed-root: true

package: lambda.term
version: 6
depends: lwt >= 20 , react , zed >= 1 , camomile , lwt.react , jbuilder >= 9
conflicts: lambda.term
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.12.0
opam-name: lambda-term

package: conf.which
version: 1
conflicts: conf.which
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1
opam-name: conf-which

package: num
version: 3
depends: ocamlfind >= 22
conflicts: num , base.num
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.1
opam-name: num

package: ocamlbuild
version: 6
conflicts: ocamlbuild , base.ocamlbuild , ocamlfind < 18
installed: true
was-installed: true
pinned: false
installed-root: false
reinstall: false
opam-version: 0.11.0
opam-name: ocamlbuild
version-lag: 1

package: cmdliner
version: 12
depends: ocamlfind , ocamlbuild , topkg , result
conflicts: cmdliner
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.0.2
opam-name: cmdliner

package: yojson
version: 10
depends: jbuilder , cppo , easy.format , biniou >= 4
conflicts: yojson
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.4.0
opam-name: yojson

package: ocamlfind
version: 22
depends: conf.m4
conflicts: ocamlfind
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.7.3
opam-name: ocamlfind

package: uutf
version: 3
depends: ocamlfind , ocamlbuild , topkg , uchar , cmdliner
conflicts: uutf , cmdliner < 6
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: 1.0.1
opam-name: uutf

package: stdio
version: 3
depends: base >= 5 , base < 6 , jbuilder >= 2
conflicts: stdio
installed: true
was-installed: true
version-lag: 0
pinned: false
installed-root: false
reinstall: false
opam-version: v0.9.1
opam-name: stdio

####