# ERROR: resolution failed

**URL:** <https://discourse.flox.dev/t/error-resolution-failed/928>\
**Category:** Help\
**Created:** [July 20, 2024, 11:56am UTC](https://discourse.flox.dev/t/error-resolution-failed/928 "2024-07-20T11:56:12Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![johnl](https://avatars.discourse-cdn.com/v4/letter/j/dec6dc/32.png) [@johnl](https://discourse.flox.dev/u/johnl)\
**Post date:** [July 20, 2024, 11:56am UTC](https://discourse.flox.dev/t/error-resolution-failed/928/1 "2024-07-20T11:56:12Z")

</div>

I thought I would try version 1.2 so I nuked the existing flox 1.02 install on my Linux Mint machine and installed the new x86\_64 .deb.

Some packages that used to install fine before, eg vlc now give an error message

```auto
$ flox install vlc
 ERROR: resolution failed: package 'vlc' not available for
    - aarch64-darwin
    - x86_64-darwin
  but it is available for
    - aarch64-linux
    - x86_64-linux

```

I tried fiddling with the manifest, but to no avail.

---

<div class="post-metadata">

**Author:** ![ghudgins](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.flox.dev/ghudgins/32/588_2.png) [@ghudgins](https://discourse.flox.dev/u/ghudgins)\
**Post date:** [July 20, 2024, 12:40pm UTC](https://discourse.flox.dev/t/error-resolution-failed/928/2 "2024-07-20T12:40:49Z")

</div>

we did change how we lock packages and will fail if a package doesn’t lock for all 4 systems. you should be able to resolve it by putting this in your manifest:

```auto
vlc.pkg-path = "vlc"
vlc.systems = ["aarch64-linux", "x86_64-linux"]

```

let me know if that works! we do have an improvement to make here to make this just work automatically [Improve cross-system support now with catalog service · Issue #1723 · flox/flox · GitHub](https://github.com/flox/flox/issues/1723)

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<div class="post-metadata">

**Author:** ![johnl](https://avatars.discourse-cdn.com/v4/letter/j/dec6dc/32.png) [@johnl](https://discourse.flox.dev/u/johnl)\
**Post date:** [July 20, 2024, 1:01pm UTC](https://discourse.flox.dev/t/error-resolution-failed/928/3 "2024-07-20T13:01:41Z")

</div>

Some progress

```auto
$ flox install vlc

```

`Package with id 'vlc' already installed to environment 'flox_intro'`

Edit:

After that I ran `flox upgrade toplevel` and it installed.