Settings menu does not open (Error: Requiring Json, version none: Typelib file for namespace 'Json' (any version) not found)

[The-Nyla]

I'm running Vanilla OS, and when attempting to open the settings for Custom OSD, I run into this error

[neuromorph]

This is duplicate of issue #13

Resolution from that issue for reference:

This error happens due to missing introspection package. While the libjson-glib is installed by default as expected, the corresponding introspection package is missing for some reason.

Please install following tiny package to fix it. You can use synaptic package manager to install it, if you wish.
Package: gir1.2-json-1.0

The 'gir' is the Gnome Introspection Repository. This helps it find the API for the lib already installed.

Thanks!

[The-Nyla]

Thanks!

[The-Nyla]

I've just installed the package and restarted my system, but the same error persists for some reason

[neuromorph]

Maybe the Vanilla OS is more vanilla than others.
Check if you have libjson installed. You can run:
dpkg --list | grep libjson-glib-1.0-0

If that has no results, then in general:
dpkg --list | grep json
and look for similar libs installed.

You may need to install libjson-glib-1.0-0 if none available.

[The-Nyla]

seems to be installed already

[neuromorph]

Whoa!
So it does seem installed.
To be sure, do you get similar output for the gir package by running:
dpkg --list | grep gir1.2-json-1.0

That should fix the issue so please double-check. I am not sure of anything else as of now.

[The-Nyla]

error still persists, pretty strange. I'd assume it's probably something to do with Vanilla OS, because other than that I have no clue what could be the issue

[neuromorph]

The issue as per the error is that some library for 'json' is missing. Though need to find which one.
Maybe you can compare with the output I get. This is part of it, other than this there are few related to 'node' and 'python' that appear in the result but these should be more relevant.

$ dpkg --list | grep json
ii  gir1.2-json-1.0:amd64                            1.8.0-2build2                             amd64        GLib JSON manipulation library (introspection data)
ii  libcjson1:amd64                                  1.7.17-1                                  amd64        Ultralightweight JSON parser in ANSI C
ii  libfastjson4:amd64                               1.2304.0-1build1                          amd64        fast json library for C
ii  libjson-c5:amd64                                 0.17-1build1                              amd64        JSON manipulation library - shared library
ii  libjson-glib-1.0-0:amd64                         1.8.0-2build2                             amd64        GLib JSON manipulation library
ii  libjson-glib-1.0-common                          1.8.0-2build2                             all          GLib JSON manipulation library (common files)
ii  libunity-scopes-json-def-desktop                 7.1.4+19.04.20190319-6build4              all          binding to get places into the launcher - desktop def fi

Can you find something missing for you ? we can look into that.

[The-Nyla]

Here's what I got

$ dpkg --list | grep json
ii gir1.2-json-1.0:amd64 1.8.0-2+b1 amd64 GLib JSON manipulation library (introspection data)
ii libcjson1:amd64 1.7.18-3 amd64 Ultralightweight JSON parser in ANSI C
ii libfastjson4:amd64 1.2304.0-1+b1 amd64 fast json library for C
ii libjson-c5:amd64 0.17-1+b1 amd64 JSON manipulation library - shared library
ii libjson-glib-1.0-0:amd64 1.8.0-2+b1 amd64 GLib JSON manipulation library
ii libjson-glib-1.0-common 1.8.0-2 all GLib JSON manipulation library (common files)
ii libjsoncpp25:amd64 1.9.5-6+b2 amd64 library for reading and writing JSON for C++
ii node-json-buffer 3.0.1+~3.0.0-1 all JSON functions that can convert buffers.
ii node-json-parse-better-errors 1.0.2+~cs3.3.1-3 all JSON.parse() with context information on error
ii node-json-schema 0.4.0+~7.0.11-1 all JSON Schema validation and specifications
ii node-json-schema-traverse 1.0.0-3 all Json schema traversal package
ii node-json-stable-stringify 1.0.2+repack1+~cs1.0.34-2 all deterministic JSON.stringify()
ii node-json5 2.2.3+dfsg-1 all JSON for the ES5 era
ii node-jsonify 0.0.1-1 all JSON without touching any globals
ii node-jsonparse 1.3.1-10 all Pure javascript JSON streaming parser for node.js
ii node-parse-json 5.2.0+~cs5.1.7-2 all parse JSON with more helpful errors
ii node-promzard 0.3.0-2 all Promzard provides a prompting json wizard
ii node-read-package-json 5.0.2+~2.0.0-2 all Read package.json for npm module for Node.js
ii node-read-pkg 5.2.0-2 all Read a package.json file
ii node-strip-json-comments 4.0.0-4 all Node.js module to strip comments from JSON

[neuromorph]

The libs seem to be installed. This should have allowed finding Json.
Has the error changed now or is it still exactly the same?

[The-Nyla]

Ah, sorry for the late response, but the error seems to stay the same

[jerm00]

This is duplicate of issue #13

Resolution from that issue for reference:

This error happens due to missing introspection package. While the libjson-glib is installed by default as expected, the corresponding introspection package is missing for some reason.

Please install following tiny package to fix it. You can use synaptic package manager to install it, if you wish. Package: gir1.2-json-1.0

The 'gir' is the Gnome Introspection Repository. This helps it find the API for the lib already installed.

Thanks!

i had the same error, this fixed it for me. thanks a lot! ubuntu 24.04.1

[suhanyujie]

Ah, sorry for the late response, but the error seems to stay the same

You may need to restart gnome-shell:
1.alt + f2
2.type r
3.enter