# Nanopass installation failed

**URL:** <https://racket.discourse.group/t/nanopass-installation-failed/4319>\
**Category:** Questions & Answers\
**Created:** [July 16, 2026, 11:19am UTC](https://racket.discourse.group/t/nanopass-installation-failed/4319 "2026-07-16T11:19:58Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Antigen-11](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/antigen-11/32/1813_2.png) [@Antigen-11](https://racket.discourse.group/u/Antigen-11)\
**Post date:** [July 16, 2026, 11:19am UTC](https://racket.discourse.group/t/nanopass-installation-failed/4319/1 "2026-07-16T11:19:58Z")

</div>

Hello everyone!

The following errors occurred when I tried to install nanopass. How should I install it correctly?

```scheme
# raco pkg install nanopass
Resolving "nanopass" via https://download.racket-lang.org/releases/9.2/catalog/
Resolving "nanopass" via https://download.rhombus-lang.org/releases/current/catalog/
package-catalog-lookup: error from server
  URL: https://download.rhombus-lang.org/releases/current/catalog/pkg/nanopass?version=9.2
  status code: 400
  context...:
   /usr/racket/collects/pkg/private/network.rkt:67:6
# raco pkg install --catalog https://download.racket-lang.org/releases/9.2/catalog/ nanopass
Resolving "nanopass" via https://download.racket-lang.org/releases/9.2/catalog/
raco pkg install: cannot find package on catalogs
  package: nanopass

```

Thanks!

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<div class="post-metadata">

**Author:** ![mflatt](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/mflatt/32/6_2.png) [@mflatt](https://racket.discourse.group/u/mflatt)\
**Post date:** [July 16, 2026, 11:47am UTC](https://racket.discourse.group/t/nanopass-installation-failed/4319/2 "2026-07-16T11:47:08Z")

</div>

The catalog [https://download.rhombus-lang.org/releases/current/catalog/](https://download.rhombus-lang.org/releases/current/catalog/) is an AWS S3-backed site via Cloudflare's CDN. Maybe there was a temporary glitch? It's working ok for me at the moment, but I may be getting different servers in my area.

If you're still seeing trouble, you could try the third catalog in the search sequence (instead of the first), which is the one with a "nanopass" entry:

```scheme
 raco pkg install --catalog https://pkgs.racket-lang.org/ nanopass

```

But that catalog is the same S3+Cloudflare setup, so it might run into the same trouble.

---

<div class="post-metadata">

**Author:** ![Antigen-11](https://yyz2.discourse-cdn.com/free1/user_avatar/racket.discourse.group/antigen-11/32/1813_2.png) [@Antigen-11](https://racket.discourse.group/u/Antigen-11)\
**Post date:** [July 16, 2026, 12:03pm UTC](https://racket.discourse.group/t/nanopass-installation-failed/4319/3 "2026-07-16T12:03:51Z")

</div>

This approach works for me. Thanks!