Launcher is giving an Desklet error; this._app is null

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garajo

Launcher is giving an Desklet error; this._app is null

Post by garajo »

I get errors when starting up the OS. Following is the glass.log output.

Code: Select all


info t=2016-05-07T04:57:24.780Z Cinnamon.AppSystem.get_default() started in 3726 ms
info t=2016-05-07T04:57:24.857Z loading default theme
info t=2016-05-07T04:57:25.771Z PlacesManager: Updating devices
info t=2016-05-07T04:57:26.136Z loaded at Fri May 06 2016 21:57:26 GMT-0700 (PDT)
info t=2016-05-07T04:57:27.420Z Loaded applet menu@cinnamon.org in 1203 ms
info t=2016-05-07T04:57:27.475Z Loaded applet show-desktop@cinnamon.org in 55 ms
info t=2016-05-07T04:57:27.535Z Role locked: panellauncher
info t=2016-05-07T04:57:27.535Z Loaded applet panel-launchers@cinnamon.org in 59 ms
info t=2016-05-07T04:57:27.695Z Loaded applet window-list@cinnamon.org in 160 ms
info t=2016-05-07T04:57:27.716Z Role locked: notifications
info t=2016-05-07T04:57:27.719Z Loaded applet notifications@cinnamon.org in 23 ms
info t=2016-05-07T04:57:27.860Z Loaded applet user@cinnamon.org in 140 ms
info t=2016-05-07T04:57:27.868Z Loaded applet removable-drives@cinnamon.org in 7 ms
info t=2016-05-07T04:57:28.199Z Loaded applet keyboard@cinnamon.org in 331 ms
info t=2016-05-07T04:57:28.301Z Loaded applet bluetooth@cinnamon.org in 102 ms
info t=2016-05-07T04:57:28.470Z Loaded applet network@cinnamon.org in 168 ms
info t=2016-05-07T04:57:29.168Z Loaded applet sound@cinnamon.org in 697 ms
info t=2016-05-07T04:57:29.447Z Loaded applet power@cinnamon.org in 279 ms
info t=2016-05-07T04:57:29.454Z Loaded applet systray@cinnamon.org in 7 ms
info t=2016-05-07T04:57:29.681Z Loaded applet calendar@cinnamon.org in 226 ms
info t=2016-05-07T04:57:29.712Z Loaded applet windows-quick-list@cinnamon.org in 30 ms
info t=2016-05-07T04:57:29.712Z AppletManager.init() started in 3576 ms
error t=2016-05-07T04:57:29.783Z this._app is null
trace t=2016-05-07T04:57:29.783Z 
<----------------
MyDesklet.prototype._getIconActor@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:65
MyDesklet.prototype._onSettingsChanged@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:98
MyDesklet.prototype._init@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:30
MyDesklet@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:20
main@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:145
_createDesklets@/usr/share/cinnamon/js/ui/deskletManager.js:290
_loadDesklet@/usr/share/cinnamon/js/ui/deskletManager.js:251
finishExtensionLoad@/usr/share/cinnamon/js/ui/deskletManager.js:153
loadExtension@/usr/share/cinnamon/js/ui/extension.js:451
init@/usr/share/cinnamon/js/ui/deskletManager.js:50
start@/usr/share/cinnamon/js/ui/main.js:454
@<main>:1
---------------->
error t=2016-05-07T04:57:29.783Z [Desklet "launcher@cinnamon.org"]: Failed to evaluate 'main' function on desklet: launcher@cinnamon.org/3
error t=2016-05-07T04:57:29.783Z Could not load desklet launcher@cinnamon.org
info t=2016-05-07T04:57:29.785Z Cinnamon took 9047 ms to start
info t=2016-05-07T04:57:30.081Z Hiding indicator (role already handled): nm-applet
info t=2016-05-07T04:57:38.670Z Adding systray: mintupdate.py (20x20px)
info t=2016-05-07T04:57:55.617Z Adding systray: google-chrome-stable (20x20px)
info t=2016-05-07T04:57:59.534Z Adding systray: google-chrome-stable (20x20px)
I checked my Desklet manager, and I can't seem to locate a culprit there neither. I don't use Desklets, so getting rid of the error notices on startup would be a good riddance. Thanks for any help.
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schm0
Level 1
Level 1
Posts: 43
Joined: Mon Dec 08, 2014 12:27 pm

Re: Launcher is giving an Desklet error; this._app is null

Post by schm0 »

Interesting. I've been getting this error on my laptop as well for quite some time. While annoying, it doesn't seem to impact performance in any way. I'd love to fix it as well! Have you had any luck since you posted this? If not, would someone here be able to assist?

Here's my log, if it helps:

Code: Select all

info t=2017-05-25T00:17:51.179Z Cinnamon.AppSystem.get_default() started in 444 ms
info t=2017-05-25T00:17:51.183Z loading user theme: /usr/share/themes/Linux Mint/cinnamon/cinnamon.css
info t=2017-05-25T00:17:51.200Z added icon directory: /usr/share/themes/Linux Mint/cinnamon
info t=2017-05-25T00:17:51.692Z PlacesManager: Updating devices
info t=2017-05-25T00:17:51.710Z loaded at Wed May 24 2017 20:17:51 GMT-0400 (EDT)
info t=2017-05-25T00:17:53.044Z Loaded applet menu@cinnamon.org in 1282 ms
info t=2017-05-25T00:17:53.049Z Loaded applet show-desktop@cinnamon.org in 4 ms
info t=2017-05-25T00:17:53.083Z Role locked: panellauncher
info t=2017-05-25T00:17:53.101Z Loaded applet panel-launchers@cinnamon.org in 51 ms
info t=2017-05-25T00:17:53.111Z Loaded applet window-list@cinnamon.org in 8 ms
info t=2017-05-25T00:17:53.119Z Role locked: notifications
info t=2017-05-25T00:17:53.122Z Loaded applet notifications@cinnamon.org in 10 ms
info t=2017-05-25T00:17:53.376Z Loaded applet user@cinnamon.org in 253 ms
info t=2017-05-25T00:17:53.383Z Loaded applet removable-drives@cinnamon.org in 6 ms
info t=2017-05-25T00:17:53.786Z Loaded applet keyboard@cinnamon.org in 402 ms
info t=2017-05-25T00:17:54.110Z Loaded applet network@cinnamon.org in 322 ms
info t=2017-05-25T00:17:54.136Z Loaded applet sound@cinnamon.org in 26 ms
info t=2017-05-25T00:17:54.150Z Loaded applet power@cinnamon.org in 13 ms
info t=2017-05-25T00:17:54.158Z Loaded applet systray@cinnamon.org in 7 ms
info t=2017-05-25T00:17:54.174Z Loaded applet calendar@cinnamon.org in 15 ms
info t=2017-05-25T00:17:54.181Z Loaded applet windows-quick-list@cinnamon.org in 6 ms
info t=2017-05-25T00:17:54.181Z AppletManager.init() started in 2471 ms
error t=2017-05-25T00:17:54.188Z this._app is null
trace t=2017-05-25T00:17:54.188Z 
<----------------
MyDesklet.prototype._getIconActor@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:65
MyDesklet.prototype._onSettingsChanged@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:98
MyDesklet.prototype._init@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:30
MyDesklet@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:20
main@/usr/share/cinnamon/desklets/launcher@cinnamon.org/desklet.js:145
_createDesklets@/usr/share/cinnamon/js/ui/deskletManager.js:290
_loadDesklet@/usr/share/cinnamon/js/ui/deskletManager.js:251
finishExtensionLoad@/usr/share/cinnamon/js/ui/deskletManager.js:153
loadExtension@/usr/share/cinnamon/js/ui/extension.js:451
init@/usr/share/cinnamon/js/ui/deskletManager.js:50
start@/usr/share/cinnamon/js/ui/main.js:456
@<main>:1
---------------->
error t=2017-05-25T00:17:54.188Z [Desklet "launcher@cinnamon.org"]: Failed to evaluate 'main' function on desklet: launcher@cinnamon.org/0
error t=2017-05-25T00:17:54.188Z Could not load desklet launcher@cinnamon.org
info t=2017-05-25T00:17:54.190Z Cinnamon took 3955 ms to start
info t=2017-05-25T00:17:54.982Z Hiding systray: network
info t=2017-05-25T00:17:54.983Z Adding systray: blueberry-tray.py (24x24px)
info t=2017-05-25T00:18:11.304Z Adding systray: mintupdate.py (24x24px)
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Cosmo.
Level 24
Level 24
Posts: 22968
Joined: Sat Dec 06, 2014 7:34 am

Re: Launcher is giving an Desklet error; this._app is null

Post by Cosmo. »

What is your version of Mint and what is the desktop environment? If you don't know open a terminal and enter:

Code: Select all

inxi -Sz
Paste the output here.

This is a desklet, which comes with Mint, but is not activated by default.

Open the desklet configuration and right click the desklet, that select to remove it. If this does not help click button to remove all desklets. Next restart Cinnamon.

EDIT: corrected partially wrong information.
Last edited by karlchen on Fri Jul 10, 2020 3:42 pm, edited 1 time in total.
Reason: rpaskudniak's post can be found here: https://forums.linuxmint.com/viewtopic.php?p=1843674#p1843674 / this thread dead for more than 3 years / Cosmo has not been here for very long.
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