Crash on Arch Linux Hyprland after updating to Cursor 1.6.23 (TypeError: Class constructor Fi cannot be invoked without 'new')

[nxfi777 (Rafael Aslanian)]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

After updating to cursor-bin 1.6.23 from the AUR, Cursor immediately crashes on launch. The error consistently shows:

TypeError: Class constructor Fi cannot be invoked without 'new'
    at Md (file:///usr/share/cursor/resources/app/out/main.js:37:61482)
    at M0.invokeFunction (file:///usr/share/cursor/resources/app/out/main.js:118:954)
    at new Tl (file:///usr/share/cursor/resources/app/out/main.js:57:75580)
    at M0._createInstance (file:///usr/share/cursor/resources/app/out/main.js:118:2015)
    at M0.createInstance (file:///usr/share/cursor/resources/app/out/main.js:118:1445)
    at af.openInBrowserWindow (file:///usr/share/cursor/resources/app/out/main.js:61:34292)
    at af.doOpenFolderOrWorkspace (file:///usr/share/cursor/resources/app/out/main.js:61:19815)
    at af.doOpen (file:///usr/share/cursor/resources/app/out/main.js:61:17669)
    at af.open (file:///usr/share/cursor/resources/app/out/main.js:61:12721)
    at async fp.startup (file:///usr/share/cursor/resources/app/out/main.js:85:22470)
    at async qP.startup (file:///usr/share/cursor/resources/app/out/main.js:122:51812)

This happens both with the packaged launcher and when running directly with the system Electron:

ELECTRON_ENABLE_LOGGING=1 /usr/lib/electron34/electron /usr/share/cursor/resources/app

Steps to Reproduce

1. Install/upgrade cursor-bin from AUR (yay -S cursor-bin → version 1.6.23-1).
2. Run cursor --verbose on Arch Linux with Hyprland (Wayland).
3. Observe crash.

Expected Behavior

Cursor should start and open a new window as normal.

Operating System

Linux

Current Cursor Version (Menu → About Cursor → Copy)

1.6.23 (from AUR, cursor-bin package)

Additional Information

Downgrading to cursor-bin 1.5.11 fixes the issue; Cursor launches normally.

Portal-related warnings appear (about org.freedesktop.portal.FileChooser), but they do not cause a crash in 1.5.11.

The crash is reproducible with a clean profile (–user-data-dir /tmp/cursor-clean) and both Wayland and X11 flags.

Sample verbose log snippet:

[main 2025-09-16T08:59:39.449Z] TypeError: Class constructor Fi cannot be invoked without 'new'
    at Md (file:///usr/share/cursor/resources/app/out/main.js:37:61482)
    ...
[main 2025-09-16T08:59:39.449Z] Lifecycle#kill()

Does this stop you from using Cursor

Yes - Cursor is unusable

[pascencio (Patricio Ascencio)]

I have the same issue in Manjaro with Cinnamon. Please fix it.

[Rahat_Zaman]

I am also facing the shame issue on CachyOS. Installed from AUR. With cursor --verbose, it does not show any log on terminal and just ends the program.

[dvelasquez (Danilo Velasquez Urrutia)]

Having the exact same error with CachyOS with KDE Plasma

[user651]

Same issue here. verbose log when trying to run cursor pased below.

\[main 2025-09-16T21:52:24.527Z\] TypeError: Class constructor Fi cannot be invoked without ‘new’
at Md (file:///usr/share/cursor/resources/app/out/main.js:37:61482)
at M0.invokeFunction (file:///usr/share/cursor/resources/app/out/main.js:118:954)
at new Tl (file:///usr/share/cursor/resources/app/out/main.js:57:75580)
at M0.\_createInstance (file:///usr/share/cursor/resources/app/out/main.js:118:2015)
at M0.createInstance (file:///usr/share/cursor/resources/app/out/main.js:118:1445)
at af.openInBrowserWindow (file:///usr/share/cursor/resources/app/out/main.js:61:34292)
at af.doOpenFolderOrWorkspace (file:///usr/share/cursor/resources/app/out/main.js:61:19815)
at af.doOpen (file:///usr/share/cursor/resources/app/out/main.js:61:17669)
at af.open (file:///usr/share/cursor/resources/app/out/main.js:61:12721)
at async fp.startup (file:///usr/share/cursor/resources/app/out/main.js:85:22470)
at async qP.startup (file:///usr/share/cursor/resources/app/out/main.js:122:51812)
\[main 2025-09-16T21:52:24.527Z\] Lifecycle#kill()
\[main 2025-09-16T21:52:24.527Z\] Lifecycle#onWillShutdown.fire()
\[main 2025-09-16T21:52:24.528Z\] Lifecycle#onWillShutdown - begin ‘instanceLockfile’
\[main 2025-09-16T21:52:24.528Z\] storageMainService#onWillShutdown()
\[main 2025-09-16T21:52:24.528Z\] Lifecycle#onWillShutdown - begin ‘applicationStorage’
\[main 2025-09-16T21:52:24.528Z\] Lifecycle#onWillShutdown - begin ‘extHostStarter’
\[main 2025-09-16T21:52:24.528Z\] Lifecycle#onWillShutdown - end ‘extHostStarter’
\[main 2025-09-16T21:52:24.528Z\] StorageMainService: closed application storage
\[main 2025-09-16T21:52:24.528Z\] Lifecycle#onWillShutdown - end ‘applicationStorage’
\[main 2025-09-16T21:52:24.529Z\] Lifecycle#onWillShutdown - end ‘instanceLockfile’
\[main 2025-09-16T21:52:24.529Z\] \[File Watcher (node.js)\] Started watching: ‘/home/awkwabear/.config/Cursor/User’
\[main 2025-09-16T21:52:24.529Z\] \[File Watcher (node.js)\] Started watching: ‘/home/awkwabear/.config/Cursor/User/settings.json’
\[main 2025-09-16T21:52:24.531Z\] \[File Watcher (node.js)\] Request to stop watching: /home/awkwabear/.config/Cursor/User (excludes: , includes: , filter: , correlationId: ),/home/awkwabear/.config/Cursor/User/settings.json (excludes: , includes: , filter: , correlationId: )
\[main 2025-09-16T21:52:24.531Z\] \[File Watcher (node.js)\] stopping file watcher (/home/awkwabear/.config/Cursor/User (excludes: , includes: , filter: , correlationId: ))
\[main 2025-09-16T21:52:24.531Z\] \[File Watcher (node.js)\] stopping file watcher (/home/awkwabear/.config/Cursor/User/settings.json (excludes: , includes: , filter: , correlationId: ))

[Logix_Software]

Problem

The cursor-bin AUR package applies a titlebar patch that can break Cursor, causing it to fail to start with errors like:

TypeError: Class constructor Fi cannot be invoked without 'new'

Quick Solution

Just copy and paste this into your terminal:

curl -fsSL https://raw.githubusercontent.com/dev-kraken/cursor-fix/main/main.js | sudo tee /usr/share/cursor/resources/app/out/main.js > /dev/null && echo "✅ Cursor fixed!"

# Simple fix
curl -fsSL https://raw.githubusercontent.com/dev-kraken/cursor-fix/main/main.js | sudo tee /usr/share/cursor/resources/app/out/main.js > /dev/null && echo "✅ Cursor fixed!"

Fix with Backup

# Create backup first, then fix
sudo cp /usr/share/cursor/resources/app/out/main.js /usr/share/cursor/resources/app/out/main.js.backup && \
curl -fsSL https://raw.githubusercontent.com/dev-kraken/cursor-fix/main/main.js | sudo tee /usr/share/cursor/resources/app/out/main.js > /dev/null && \
echo "✅ Cursor fixed with backup created!"

Alternative with wget

# If you prefer wget over curl
wget -qO- https://raw.githubusercontent.com/dev-kraken/cursor-fix/main/main.js | sudo tee /usr/share/cursor/resources/app/out/main.js > /dev/null && echo "✅ Cursor fixed!"

Fix with Verification

# Fix and test that it works
curl -fsSL https://raw.githubusercontent.com/dev-kraken/cursor-fix/main/main.js | sudo tee /usr/share/cursor/resources/app/out/main.js > /dev/null && \
cursor --version && \
echo "✅ Cursor fixed and working!"

[user651]

Fixed after updating to cursor-bin 1.6.26-2