DeprecationWarning: Buffer() is deprecated due to security and usability issues

[alexdima]

Moved from microsoft/vscode#93177

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From @AdamFeher2400

I found the following error on console of Developer Tools in Visual Studio Code.
(node:1412) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.

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From @zix66

Hi there!I did a little investigation : disabling & re-enabling each one from my extensions.So problem (funny!) with Microsoft Live Share. With best wishes, Igor Umansky

[fubaduba]

Thanks for reporting this issue. We'll dig in to see what we find.

[fubaduba]

@IlyaBiryukov who would be the best person for this?

[IlyaBiryukov]

@dlebu

[aexvir]

Any update on this? It would at least be nice to not have the terminal popping up every time because of this error 😕️

[jasonwilliams]

I'm also getting this, its been happening for a long time now.
Here's a stack trace:

(node:15448) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
	at showFlaggedDeprecation (buffer.js:192:11)
	at new Buffer (buffer.js:279:3)
	at alloc (c:\Users\[User]\.vscode-insiders\extensions\ms-vsliveshare.vsliveshare-1.0.3206\out\prod\extension-prod.js:96294:10)
	at Object.../node_modules/msgpack-lite/lib/bufferish-buffer.js (c:\Users\[User]\.vscode-insiders\extensions\ms-vsliveshare.vsliveshare-1.0.3206\out\prod\extension-prod.js:96282:54)
	at __webpack_require__ (c:\Users\[User]\.vscode-insiders\extensions\ms-vsliveshare.vsliveshare-1.0.3206\out\prod\extension-prod.js:21:30)
	at Object.../node_modules/msgpack-lite/lib/bufferish.js (c:\Users\[User]\.vscode-insiders\extensions\ms-vsliveshare.vsliveshare-1.0.3206\out\prod\extension-prod.js:96509:37)
	at __webpack_require__ (c:\Users\[User]\.vscode-insiders\extensions\ms-vsliveshare.vsliveshare-1.0.3206\out\prod\extension-prod.js:21:30)
	at Object.../node_modules/msgpack-lite/lib/ext-buffer.js (c:\Users\[User]\.vscode-insiders\extensions\ms-vsliveshare.vsliveshare-1.0.3206\out\prod\extension-prod.js:97003:17)
	at __webpack_require__ (c:\Users\[User]\.vscode-insiders\extensions\ms-vsliveshare.vsliveshare-1.0.3206\out\prod\extension-prod.js:21:30)
	at Object.../node_modules/msgpack-lite/lib/write-core.js (c:\Users\[User]\.vscode-insiders\extensions\ms-vsliveshare.vsliveshare-1.0.3206\out\prod\extension-prod.js:97853:17)
	at __webpack_require__ (c:\Users\[User]\.vscode-insiders\extensions\ms-vsliveshare.vsliveshare-1.0.3206\out\prod\extension-prod.js:21:30)

Looks its liveshare using msgpack-lite, and so its potentially coming from kawanet/msgpack-lite#98

[Ichurep]

I get the same problem when running with a Microsoft agent in Azure DevOps.

Error Message:
(node:7200) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead

[andrewpolemeni]

I'm also getting the same issue when compiling a VSCode extension.

Installing extensions...
(node:2944) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.

[Bond-Anna]

I'm also looking for the solution

vscode-htmlhing LS: we have a connection
(node:41331) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.

[michaelhidalgo]

Hi guys, any update about this? I have Node v14.17.3 (macOS Big Sur) and I'm trying to follow this guide https://code.visualstudio.com/api/get-started/your-first-extension but I get this error:

(node:4579) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues.