# Kopia-ui not starting **URL:** \ **Category:** Support\ **Created:** [April 4, 2021, 5:26am UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354 "2021-04-04T05:26:05Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![nhum](https://avatars.discourse-cdn.com/v4/letter/n/ecccb3/32.png) [@nhum](https://kopia.discourse.group/u/nhum)\ **Post date:** [April 4, 2021, 5:26am UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354/1 "2021-04-04T05:26:05Z")
I am running kopia and kopia-ui on ubuntu, which I installed through the apt repository. When I run kopia-ui, nothing opens and I get the following error: ``` 01:23:28.358 › errorTypeError: app.isInApplicationsFolder is not a function 01:23:28.366 › APPIMAGE env is not defined, current application is not an AppImage ``` ---
**Author:** ![jkowalski](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/jkowalski/32/3_2.png) [@jkowalski](https://kopia.discourse.group/u/jkowalski)\ **Post date:** [April 4, 2021, 5:45am UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354/2 "2021-04-04T05:45:01Z")
Can you provide version information? Is it a regression (did previous versions work fine?) ---
**Author:** ![nhum](https://avatars.discourse-cdn.com/v4/letter/n/ecccb3/32.png) [@nhum](https://kopia.discourse.group/u/nhum)\ **Post date:** [April 4, 2021, 3:37pm UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354/3 "2021-04-04T15:37:15Z")
This error started when I switched to v0.8 beta3 from v0.7.3 and still happens with beta4. ---
**Author:** ![kwag](https://avatars.discourse-cdn.com/v4/letter/k/b4bc9f/32.png) [@kwag](https://kopia.discourse.group/u/kwag)\ **Post date:** [April 7, 2021, 7:02am UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354/4 "2021-04-07T07:02:10Z")
Happened to me too!, but only on one of my machines. All running Manjaro Linux (Plasma version) As I am on Linux, when I typed “mount”, I saw many stray mount points like “/tmp/.mount\_KopiaUzHVwlt” etc. Remove them and restart kopiaUI. That fixed the issue for me on beta 4. I’m now running current build from git. ---
**Author:** ![nhum](https://avatars.discourse-cdn.com/v4/letter/n/ecccb3/32.png) [@nhum](https://kopia.discourse.group/u/nhum)\ **Post date:** [April 7, 2021, 8:09am UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354/5 "2021-04-07T08:09:30Z")
I didn’t find stray mount points, so that probably isn’t the issue for me. ---
**Author:** ![jkowalski](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/jkowalski/32/3_2.png) [@jkowalski](https://kopia.discourse.group/u/jkowalski)\ **Post date:** [April 7, 2021, 2:55pm UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354/6 "2021-04-07T14:55:55Z")
I think there’s some required package missing, but not sure which one. We don’t test Kopia-UI on Linux regularly (because there’s so many distros of Linux which makes this impossble), so I’d appreciate if somebody from the community could help figure that out so we can document it. BTW there could be more logs under `$HOME/.cache/kopia/cli-logs/` and/or `$HOME/.config/kopia-ui/` ---
**Author:** ![kwag](https://avatars.discourse-cdn.com/v4/letter/k/b4bc9f/32.png) [@kwag](https://kopia.discourse.group/u/kwag)\ **Post date:** [April 7, 2021, 11:57pm UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354/7 "2021-04-07T23:57:41Z")
I’ll keep an eye on this. If it happens again, I’ll check the logs and post here. So far, works perfectly on Manjaro Linux (KDE), which is Arch Linux. ---
**Author:** ![nhum](https://avatars.discourse-cdn.com/v4/letter/n/ecccb3/32.png) [@nhum](https://kopia.discourse.group/u/nhum)\ **Post date:** [May 12, 2021, 7:39pm UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354/8 "2021-05-12T19:39:11Z")
Deleting the config files for kopia and kopia-ui fixes this issue temporarily, but kopia-ui stops running after I connect to a repository and the config files are populated again. Moreover, when it does run, I get a “failed to load” error five times. ---
**Author:** ![Christopher](https://avatars.discourse-cdn.com/v4/letter/c/439d5e/32.png) [@Christopher](https://kopia.discourse.group/u/Christopher)\ **Post date:** [November 16, 2025, 10:57pm UTC](https://kopia.discourse.group/t/kopia-ui-not-starting/354/9 "2025-11-16T22:57:15Z")
I get problems if I quit without disconnecting the repository. If I disconnect before I quit it works fine. Otherwise, I have to delete the preferences in kopia and kopia-ui.