Questions[javascript](ubuntu)

My system is Ubuntu 20.04, I download nemo-preview from the repository of Linux Mint and installed it manually. No error or warning shows in the installation. But nemo-preview does not function when I open nemo.

I run nemo-preview in the command line, and it shows the following information and then exit.

(nemo-preview-start:20719): Cjs-WARNING **: 14:03:55.707: JS ERROR: Error: Requiring NemoPreview, version none: Typelib file for namespace 'GtkSource', version '3.0' not found
@/usr/share/nemo-preview/js/ui/fallbackRenderer.js:31:7
@/usr/share/nemo-preview/js/ui/mimeHandler.js:28:7
@/usr/share/nemo-preview/js/viewers/image.js:38:7

Segmentation fault (core dumped)

And the content in /usr/share/nemo-preview/js/ui/fallbackRenderer.js:31:7 is

const NemoPreview = imports.gi.NemoPreview;

Does anyone know how to fix this problem?

I want to see my all packages and modules of node-module. Please tell me its the location in ubuntu 18.04. such as /path/to/node-module. Moreover, How to see the code of modules such as http module or fs module.

Every now and then my gnome session freezes completely with gnome-shell using 100% CPU. The only thing I could do so far was to switch to a virtual terminal and kill gnome-shell. After that the gnome session came alive again. Any suggestion how I could avoid this problem?

My system is: Ubuntu 18.04.1 LTS (up to date)

In syslog I find the following error message for the date/time of the freeze:

[date/time] some-ubuntu gnome-shell[1902]: JS ERROR: Exception in callback for signal: child-added: InternalError: too much recursion#012_init@resource:///org/gnome/shell/ui/popupMenu.js:946:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_Base.prototype._construct@resource:///org/gnome/gjs/modules/_legacy.js:18:5#012Class.prototype._construct/newClass@resource:///org/gnome/gjs/modules/_legacy.js:114:32#012_init@resource:///org/gnome/shell/ui/popupMenu.js:1128:21#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_Base.prototype._construct@resource:///org/gnome/gjs/modules/_legacy.js:18:5#012Class.prototype._construct/newClass@resource:///org/gnome/gjs/modules/_legacy.js:114:32#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:453:29#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactory.createItem@/usr/share/gnome-shell/extensions/[email protected]/dbusMenu.js:479:44#012MenuItemFactor

Some of my GNOME shell extensions don't let me configure their features because I receive an error message when I try to open them. The following image is what I see when I try to open the configurations of the "Web Search Dialog" extension:

The message in the white box is this one:

Error: Requiring Clutter, version none: Typelib file for namespace 'Clutter' (any version) not found

Stack trace:
  @/home/ramuyko/.local/share/gnome-shell/extensions/[email protected]/utils.js:17:7
  @/home/ramuyko/.local/share/gnome-shell/extensions/[email protected]/prefs.js:26:7
  _getExtensionPrefsModule@resource:///org/gnome/shell/extensionPrefs/main.js:75:13
  wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
  _selectExtension@resource:///org/gnome/shell/extensionPrefs/main.js:90:31
  wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
  _onCommandLine@resource:///org/gnome/shell/extensionPrefs/main.js:243:17
  wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
  main@resource:///org/gnome/shell/extensionPrefs/main.js:397:5
  @<main>:1:43

I think this error is not an isolated problem of the "Web Search Dialog" extension because I receive this same kind of error with other extensions as well (like with the configurations of the "HowDoI" extension). Does anyone know why it happens and if there's an easy workaround to solve this issue?

PS1: I'm using Ubuntu 18.04 with GNOME Shell 3.28.1.

PS2: Although I can't configure its features, the GNOME shell extensions with this kind of error are working fine. The only problem is accessing their configuration.

I have installed the Messenger for Desktop app on my 16.04. Everytime I launch the application I get this javascript error seing on screenshot below

However when I click OK the the app launches properly. I haven't detected any issues so far, however I was wondering if anyone else has faced the same issue and how to solve it.

Edit I have noticed that I don't get a notification or any indication when some of my contacts texts me when the app is minimized. I'm not sure if this is a bug occured from this issue or whether is missing from the linux version in general (which probablly is still a bug)