wxt prepare command stuck

[mdtausifiqbal]

Describe the bug

Dear Team,

I'm writing to that I found an issue, when my project size is getting larger, wxt prepare command stuck when I install any npm dependency.

I'm using

1. Turborepo
2. pnpm

Reproduction

N/A

Steps to reproduce

N/A

System Info

System:
    OS: Windows 11 10.0.22621
    CPU: (4) x64 Intel(R) Core(TM) i5-4460  CPU @ 3.20GHz
    Memory: 1.43 GB / 7.92 GB
  Binaries:
    Node: 22.18.0 - C:\Program Files\nodejs\node.EXE
    npm: 10.9.3 - C:\Program Files\nodejs\npm.CMD
    pnpm: 10.14.0 - ~\AppData\Roaming\npm\pnpm.CMD
  Browsers:
    Edge: Chromium (138.0.3351.83)
    Internet Explorer: 11.0.22621.3527

Used Package Manager

pnpm

Validations

• [x] Read the Contributing Guidelines.
• [x] Read the docs.
• [x] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• [x] Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• [x] The provided reproduction is a minimal reproducible example of the bug.

[ImBIOS]

same here:

apps/ext postinstall$ wxt prepare
│ WXT 0.20.7
│ ℹ Generating types...
│ ✔ Finished in 683 ms
└─ Running...

  System:
    OS: Linux 6.14 Ubuntu 24.04.2 LTS 24.04.2 LTS (Noble Numbat)
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
    Memory: 3.16 GB / 15.41 GB
    Container: Yes
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.16.0 - ~/.asdf/installs/nodejs/22.16.0/bin/node
    npm: 10.9.2 - ~/.asdf/plugins/nodejs/shims/npm
    pnpm: 10.12.1 - ~/.asdf/installs/pnpm/10.12.1/bin/pnpm
    bun: 1.2.19 - ~/.bun/bin/bun
    Watchman: 2025.08.04.00 - /home/linuxbrew/.linuxbrew/bin/watchman
  Languages:
    Bash: 5.2.21 - /usr/bin/bash
    Java: 21.0.8 - /usr/bin/javac
    Perl: 5.38.2 - /usr/bin/perl
    Python3: 3.13.5 - /home/linuxbrew/.linuxbrew/bin/python3
    Ruby: 3.2.3 - /usr/bin/ruby
    Rust: 1.87.0 - /home/imbios/.cargo/bin/rustc
  Browsers:
    Chrome: 139.0.7258.66
  npmPackages:
    @supabase/supabase-js: ^2.53.1 => 2.53.1 
    @tailwindcss/vite: ^4.1.11 => 4.1.11 
    @total-typescript/ts-reset: ^0.6.1 => 0.6.1 
    @types/react: ^19.1.9 => 19.1.9 
    @types/react-dom: ^19.1.7 => 19.1.7 
    @vitejs/plugin-react-swc: ^4.0.0 => 4.0.0 
    @wxt-dev/module-react: ^1.1.3 => 1.1.3 
    clsx: ^2.1.1 => 2.1.1 
    react: ^19.1.1 => 19.1.1 
    react-dom: ^19.1.1 => 19.1.1 
    tailwind-merge: ^3.3.1 => 3.3.1 
    wxt: ^0.19.29 => 0.19.29 

---

UPDATE 1: It's no longer stuck, but I don't know the cause yet.

[braebo]

My svelte template project just hangs indefinitely on ℹ Generating types...:

$ wxt prepare

WXT 0.20.8

ℹ Generating types...
warn: bext's postinstall cost you 30.9s
warn: bext's postinstall cost you 1m965ms
warn: bext's postinstall cost you 1m30.9s
warn: bext's postinstall cost you 2m965.1ms
...etc

envinfo

  System:
    OS: macOS 15.4.1
    CPU: (12) arm64 Apple M2 Max
    Memory: 2.62 GB / 96.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.5.0 - ~/.volta/tools/image/node/24.5.0/bin/node
    npm: 11.5.1 - ~/.volta/tools/image/node/24.5.0/bin/npm
    pnpm: 10.14.0 - ~/.volta/bin/pnpm
    bun: 1.2.20 - ~/.bun/bin/bun
  Languages:
    Bash: 3.2.57 - /bin/bash
    Go: 1.24.4 - /opt/homebrew/bin/go
    Erlang: 28.0 - /opt/homebrew/bin/erl
    Perl: 5.34.1 - /usr/bin/perl
    Protoc: 29.3 - /opt/homebrew/bin/protoc
    Python3: 3.13.5 - /opt/homebrew/bin/python3
    Ruby: 2.6.10 - /usr/bin/ruby
    Rust: 1.81.0 - /Users/bew/.cargo/bin/rustc
  Browsers:
    Brave Browser: 139.1.81.131
    Chrome: 133.0.6943.142
    Safari: 18.4
    Safari Technology Preview: 18.4

[mathhulk]

I am still seeing this issue with WXT 0.20.11. I am also using pnpm in a Turbo monorepo.

[SunnyTam]

yarn with turbo got same issue today. prepare just stuck

[SunnyTam]

The problem on my side seems happen when there is a supabase createClient directly being called in utils. which result a infinitely loading of this prepare cli. e.g.

// utils/supabase

// this line result an infinitely loading
export supabase = createClient();

What i did are just do not Immediately Invoke the createClient. The problem seems like the prepare cli issue. It will try to execute the createClient instead of just building some type which result a loading.

[UndeadBaneGitHub]

I have the same issue - supabase's createClient called at the top level causes it stuck, when something in background script uses supabase.

[mikkkee]

For me the issue happens when supabase's createClient is imported in background AND when background has additional named export in addition to export default.