Prettier code format take a long time to format

[ggx-roynguyen]

Type: Bug

I dont know why but my prettier take about 1-2s to format.

Extension version: 9.12.0
VS Code version: Code 1.77.3 (Universal) (704ed70d4fd1c6bd6342c436f1ede30d1cff4710, 2023-04-12T09:19:37.325Z)
OS version: Darwin arm64 21.4.0
Modes:
Sandboxed: Yes

System Info

Item	Value
CPUs	Apple M1 Pro (8 x 24)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_renderer: enabled_on video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off
Load (avg)	5, 5, 4
Memory (System)	16.00GB (1.41GB free)
Process Argv	--crash-reporter-id b70f3c63-e04c-4015-8b63-1803fe3fdfa6
Screen Reader	no
VM	0%

A/B Experiments

vsliv368:30146709
vsreu685:30147344
python383cf:30185419
vspor879:30202332
vspor708:30202333
vspor363:30204092
vslsvsres303:30308271
vserr242:30382549
pythontb:30283811
vsjup518:30340749
pythonptprofiler:30281270
vshan820:30294714
vstes263cf:30335440
vscoreces:30445986
pythondataviewer:30285071
vscod805cf:30301675
binariesv615:30325510
bridge0708:30335490
bridge0723:30353136
cmake_vspar411:30581797
vsaa593:30376534
pythonvs932:30410667
cppdebug:30492333
vsclangdc:30486549
c4g48928:30535728
dsvsc012:30540252
pynewext54:30695312
azure-dev_surveyone:30548225
vsccc:30610678
nodejswelcome1cf:30587006
3biah626:30602489
pyind779:30671433
f6dab269:30613381
pythonsymbol12:30671437
a9j8j154:30646983
vsctsb:30705553
azdwalk:30721579
pythonms35:30701012
pythonfmttextcf:30716743

[irlTopper]

Same. If I use "developer: reload windows", it's perfect again for a little while. But 20 seconds later, saving is slow again.

[Sisableng]

idk, I can't share the results, but I just waited for this for over 30 minutes.
i have 16GB of Memory, available 9GB

i tried to disable other extensions, but still slow even i just enable prettier plugin,
i hope dev, have solution of this problem

[Sisableng]

finnaly this is the output

[roguesherlock]

I thought I was the only one but I think the recent version is causing the same issues for me

[ameer-taghavi]

same issue for me after updated macOS to 13.3 and updated vs code to the last version

[z-verse]

same issue, after updating plugin to 9.12.
macOS 13.2.1, VS Code 1.77.3

[beeb]

Same problem here. Windows 11, using WSL2, and macOS 13.2.1. Latest VSCode

Debug logs don't show errors:

["INFO" - 3:10:57 PM] Formatting file:///home/valentin/[redacted]/src/components/[redacted].astro
["INFO" - 3:10:58 PM] Using config file at '/home/valentin/[redacted]/.prettierrc'
["DEBUG" - 3:10:58 PM] Local prettier module path: '/home/valentin/[redacted]/node_modules/prettier/index.js'
["INFO" - 3:10:58 PM] Using ignore file (if present) at /home/valentin/[redacted]/.prettierignore
["INFO" - 3:10:58 PM] File Info:
{
  "ignored": false,
  "inferredParser": "astro"
}
["INFO" - 3:10:58 PM] Detected local configuration (i.e. .prettierrc or .editorconfig), VS Code configuration will not be used
["INFO" - 3:10:58 PM] Prettier Options:
{
  "filepath": "/home/valentin/[redacted].astro",
  "parser": "astro",
  "useTabs": true,
  "singleQuote": true,
  "trailingComma": "none",
  "printWidth": 120,
  "pluginSearchDirs": [
    "/home/valentin/[redacted]"
  ],
  "semi": false
}
["INFO" - 3:10:58 PM] Formatting completed in 1326ms.

The first line in the logs takes a long time to arrive after hitting the save button.

Sometimes, there is a long waiting time after the first line, and then the extension crashes.

A little bissect shows prettier is the culprit:

[timmeade]

Same issue here. Mac. i went back one version and it worked great for 1 day now is back slow. just verified still back one version.

This is a MUST fix.

[timmeade]

Same issue here. Mac. i went back one version and it worked great for 1 day now is back slow. just verified still back one version.

This is a MUST fix.

I just set the Default Formatter for the Workspace to prettier. I had it set for the user but the workspace was still unset. It seems to be working again.

TLDR Set the default formatter in BOTH workspace and user settings.

UPDATE: It's back .... Going to have to uninstall this.

[ameer-taghavi]

I unchecked these options and the problem was solved for me!

[t0rbik]

Same issue.

[aokigit]

Same issue here. I'm 🤏 this close to uninstalling cause it's unbearable.

[kristinabrueva]

I got this problem right after adding Jest tests to my NextJs project. Before that it was running and saving files with no issues. Now, the Prettier runs forever and I can't safe my changes unless I press cancel.
I had the same problem on a few other projects but this time I noticed that it might be related to tests.
Please help!

[beeb]

I unchecked these options and the problem was solved for me!

@ameer-taghavi doesn't work for me. Still having the issue with those settings disabled.

[mrroll]

Reverting to v9.10.4 appears to be working for me.

Edit No it does not.

[Terit]

After trying many of the possible fixes listed in this thread and others in this repo I still ran into this issue. Even after disabling the Prettier extension I ran into the same issues with VS Code's TypeScript formatter.

Eventually I found an issue in the VS Code repo which reported the same issues. I'm happy to report after downgrading to version 1.76.2 and using VS Code heavily for the past 2 days I'm not longer seeing issues with Prettier formatting taking forever to load.

Instructions on how to downgrade and prevent automatic updates from wiping out those changes can be found here.

[osilkin98]

Is there an ETA on when this will be fixed? This is a pretty breaking bug that I'm surprised doesn't have a higher visibility

[lawrence-cruz]

If you are using Auto Import - ES6, TS, JSX, TSX extension, try to uninstall it and replace it with Auto Import.

#1333 (comment)

[cptSwing]

After trying many of the possible fixes listed in this thread and others in this repo I still ran into this issue. Even after disabling the Prettier extension I ran into the same issues with VS Code's TypeScript formatter.

Eventually I found an issue in the VS Code repo which reported the same issues. I'm happy to report after downgrading to version 1.76.2 and using VS Code heavily for the past 2 days I'm not longer seeing issues with Prettier formatting taking forever to load.

Instructions on how to downgrade and prevent automatic updates from wiping out those changes can be found here.

For now, this is what worked for me as well!

[WagnerMoreira]

After trying many of the possible fixes listed in this thread and others in this repo I still ran into this issue. Even after disabling the Prettier extension I ran into the same issues with VS Code's TypeScript formatter.

Eventually I found an issue in the VS Code repo which reported the same issues. I'm happy to report after downgrading to version 1.76.2 and using VS Code heavily for the past 2 days I'm not longer seeing issues with Prettier formatting taking forever to load.

Instructions on how to downgrade and prevent automatic updates from wiping out those changes can be found here.

This worked for me 👍

[psd-coder]

The same issue. I do not have installed Auth import plugin. The problem appeared when I updated VS Code to the version above 1.76.2. Fixing VS Code version on 1.76.2 fixes the problem.

[hasokeric]

I am facing the same issue, I am on the Insiders build even.

[timmeade]

I never found it after looking and trying things for days. i have since went back to 1.76.2 per @WagnerMoreira above and have not had the issue since. Just waiting on someone to say they found the root cause before upgrading.

[maccman]

Running into this issue as well. :(

[hasokeric]

I downgraded to 1.76 and the issues went away.

[sdsoldi]

So? The "fix" is downgrade to 1.76?

[mpearce-bain]

VSCode 1.80.x which includes the fix for microsoft/vscode#184926 just dropped and seems to have solved the issues.

Unfortunately the latest version still hasn't resolved the issue for me 😢

[Soviut]

@mpearce-bain Double check that you are on the latest version of VSCode (1.80.1 as if this date). Similarly, make sure the prettier extension is up to date, prettier for tailwind is up to date, etc. If it's still going slowly, try disabling extensions that contribute to formatting.

[dmt0]

I'm on 1.80.1. All extensions up to date. On large files (2K lines or so) prettier still takes several seconds (15" macbook with i9 CPU, 32GB RAM). I do have a lot of extensions enabled, and I'm sure if I go through all of them I'll find a culprit. I'd assume though that a proper fix implies that I don't have to disable extensions.

Side note: rome works fine, but I don't feel that it's very stable feature-wise - even the formatter part. I'd wait a couple more major version before doing a switch.

[dmt0]

Found the offending extension. In my case it's Glean.
wix-incubator/vscode-glean#157
Once disabled I actually got a performance boost, for all kinds of operations, not just formatting. So perhaps in my case prettier was not a problem at all. 🤷‍♂️

[DeedeeSRB]

For me the fix was to disable the Console Ninja extension. After I disabled and enabled it again, everything seemed to be working just fine.

[flexchar]

After trying many of the possible fixes listed in this thread and others in this repo I still ran into this issue. Even after disabling the Prettier extension I ran into the same issues with VS Code's TypeScript formatter.

Eventually I found an issue in the VS Code repo which reported the same issues. I'm happy to report after downgrading to version 1.76.2 and using VS Code heavily for the past 2 days I'm not longer seeing issues with Prettier formatting taking forever to load.

Instructions on how to downgrade and prevent automatic updates from wiping out those changes can be found here.

Recently tried upgrading to the latest VS Code as of October, 2023. The issue came back creeping from behind with zero hesitation. There must have been some fundamental change in the program. Using Prettier 3 btw.

[BVBFD]

Using extension bisect get me realize that "Auto Import" extension conflicts with prettier in big sized coding file.
So, I recommend others having this issue try to use extension bisect in order to get to know which one is problem.

[liuJchun]

it work for me, see this issue
#3044

[arjunghimire]

If you are using Auto Import - ES6, TS, JSX, TSX extension, try to uninstall it and replace it with Auto Import.

#1333 (comment)

This is working for me. Great thanks you safe my life bro

[bouncingbumble]

#3044 (comment)

thank god, this worked for me

[dpw1]

In my case the extension "Live Sass Compiler" was the cause of Prettier's slowness. It seems that almost always the reason comes from a conflict from another extension, so I'd suggest disabling them to test it out before installing an older version

[github-actions]

This issue has been labeled as stale due to inactivity. Reply to keep this issue open.

[flexchar]

Still struggling with this to this day so definitely not stale. Sent from [Proton Mail](https://proton.me/mail/home) for iOS

…

On Tue, Feb 27, 2024 at 02:48, github-actions[bot] ***@***.***(mailto:On Tue, Feb 27, 2024 at 02:48, github-actions[bot] <<a href=)> wrote: This issue has been labeled as stale due to inactivity. Reply to keep this issue open. — Reply to this email directly, [view it on GitHub](#2999 (comment)), or [unsubscribe](https://github.com/notifications/unsubscribe-auth/ACGF2MAUD45BYSHZWBNNM23YVU3ODAVCNFSM6AAAAAAXNF6VAKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTSNRVGY2DIMRTGM). You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[TenviLi]

If you are using Auto Import - ES6, TS, JSX, TSX extension, try to uninstall it and replace it with Auto Import.

#1333 (comment)

Thank you for your solution.

[TenviLi]

I've been experiencing an issue where FormatOnSave causes lag and Git becomes unresponsive. I'm running on Windows with the Auto Import extension installed. Disabling Prettier and Auto Import didn't resolve this.

Interestingly, opening a super-long file ignored by .gitignore seems to crash the VSCode Extension Host.

However, since switching to the Windows Subsystem for Linux (WSL), everything has been operating smoothly.

[NH-Shohan]

If you are using Auto Import - ES6, TS, JSX, TSX extension, try to uninstall it and replace it with Auto Import.

#1333 (comment)

This worked for me. I had the same issue. Thank you!

[leandroruel]

prettier is literally killing my WSL2 everytime i format onsave =/

[ShahramShakiba]

If you use "Prettier ESLint" try to disable it and only use "Prettier - Code formatter". This is how I fix mine

[leandroruel]

for those facing it with WSL2 what helped me was to increase the amount of RAM to WSL2, just create .wslconfig file in your user folder eg: C:\Users\[YourUserName]:

# Settings apply across all Linux distros running on WSL 2
[wsl2]

# Limits VM memory to use no more than 4 GB, this can be set as whole numbers using GB or MB
memory=4GB 

# Sets the VM to use two virtual processors
processors=2

# Specify a custom Linux kernel to use with your installed distros. The default kernel used can be found at https://github.com/microsoft/WSL2-Linux-Kernel
#kernel=C:\\temp\\myCustomKernel

# Sets additional kernel parameters, in this case enabling older Linux base images such as Centos 6
#kernelCommandLine = vsyscall=emulate

# Sets amount of swap storage space to 8GB, default is 25% of available RAM
swap=8GB

# Sets swapfile path location, default is %USERPROFILE%\AppData\Local\Temp\swap.vhdx
swapfile=C:\\temp\\wsl-swap.vhdx

# Disable page reporting so WSL retains all allocated memory claimed from Windows and releases none back when free
pageReporting=false

# Turn on default connection to bind WSL 2 localhost to Windows localhost. Setting is ignored when networkingMode=mirrored
localhostforwarding=true

# Disables nested virtualization
nestedVirtualization=false

# Turns on output console showing contents of dmesg when opening a WSL 2 distro for debugging
debugConsole=true

# Enable experimental features
[experimental]
sparseVhd=true

[gorn]

I am having this issue and is really annoying to the point that VSCode is unusable (without automatic formatting).

[DhanushkaNP]

If you are using Auto Import - ES6, TS, JSX, TSX extension, try to uninstall it and replace it with Auto Import.

#1333 (comment)

This worked for me. Bought a new memory thinking that this was related to a memory issue😅

[Silon]

In my case problem was caused by wrong tailwindcss configuration but most helpful thing can be the way I discovered it.
Prettier plugin console didn't show any error but I ran Prettier formatting via cli (prettier --write "**/*.{ts,tsx,md}") and I found importing error in tailwind file. After fix Prettier works as expected

[ChenPt]

This was the solution for me: #3044 (comment)这是我的解决方案： #3044 (comment)

It works for me.

[kemisstep]

+1

[codemanwg]

Same issue. My Vue file only over 100 lines, but formatting takes 4-8s.
After my investigation, I found the problem lies with the path-alias plugin.
Before：

After：

I think the cause of this issue is most likely due to plugin conflicts. You can checking the plugins on your vscode.

[OwenYyds]

If you are using Auto Import - ES6, TS, JSX, TSX extension, try to uninstall it and replace it with Auto Import.

#1333 (comment)

thanks！ After trying muti solutions and this one solve my problem

[rolkey]

I just to

rm -rf ~/.vscode-server

Perfect!!