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Spectre-mitigated libraries are required for this project

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
38/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Active
Tech stack
electron, nodejs
Domain
build-system, desktop-dev, devtools

Research direction

Start by reproducing the shown electron:build command and trace the failure through @electron/rebuild's node-gyp build.js entry point. Inspect the node-pty native projects named in the MSBuild errors, including conpty.vcxproj, conpty_console_list.vcxproj, and the winpty projects; done means the Windows release build completes without MSB8040.

Written by the indexing model from the issue text.

Description

Dear all,

I have built an electron app by electron/rebuild (https://github.com/hintdesk/nodecompose). This app uses node-pty. When I start the app with

"start": "npm run build && electron ."

The app can be started but when I try to create a release with

"electron:build": "vite build && electron-builder build --win"

I receive this error

C:\Program Files\Microsoft Visual Studio\18\Professional\MSBuild\Microsoft\VC\v180\Microsoft.CppBuild.targets(524,5): error MSB8040: Spectre-mitigated libraries are required for this project. Install them from the Visual Studio installer (Individual components tab) for any toolsets and architectures being used. Learn more: https://aka.ms/Ofhn4c [C:\dev\n8n\nodecompose\node_modules\node-pty\build\conpty.vcxproj]
C:\Program Files\Microsoft Visual Studio\18\Professional\MSBuild\Microsoft\VC\v180\Microsoft.CppBuild.targets(524,5): error MSB8040: Spectre-mitigated libraries are required for this project. Install them from the Visual Studio installer (Individual components tab) for any toolsets and architectures being used. Learn more: https://aka.ms/Ofhn4c [C:\dev\n8n\nodecompose\node_modules\node-pty\build\conpty_console_list.vcxproj]
C:\Program Files\Microsoft Visual Studio\18\Professional\MSBuild\Microsoft\VC\v180\Microsoft.CppBuild.targets(524,5): error MSB8040: Spectre-mitigated libraries are required for this project. Install them from the Visual Studio installer (Individual components tab) for any toolsets and architectures being used. Learn more: https://aka.ms/Ofhn4c [C:\dev\n8n\nodecompose\node_modules\node-pty\build\deps\winpty\src\winpty-agent.vcxproj]
C:\Program Files\Microsoft Visual Studio\18\Professional\MSBuild\Microsoft\VC\v180\Microsoft.CppBuild.targets(524,5): error MSB8040: Spectre-mitigated libraries are required for this project. Install them from the Visual Studio installer (Individual components tab) for any toolsets and architectures being used. Learn more: https://aka.ms/Ofhn4c [C:\dev\n8n\nodecompose\node_modules\node-pty\build\deps\winpty\src\winpty.vcxproj]
Error: `C:\Program Files\Microsoft Visual Studio\18\Professional\MSBuild\Current\Bin\MSBuild.exe` failed with exit code: 1
    at ChildProcess.<anonymous> (C:\dev\n8n\nodecompose\node_modules\@electron\rebuild\node_modules\node-gyp\lib\build.js:219:23)
    at ChildProcess.emit (node:events:509:28)
    at ChildProcess._handle.onexit (node:internal/child_process:295:12)


  ⨯ node-gyp failed to rebuild 'C:\dev\n8n\nodecompose\node_modules\node-pty'  failedTask=build stackTrace=Error: node-gyp failed to rebuild 'C:\dev\n8n\nodecompose\node_modules\node-pty'
    at ChildProcess.<anonymous> (file:///C:/dev/n8n/nodecompose/node_modules/@electron/rebuild/lib/module-type/node-gyp/node-gyp.js:120:24)
    at ChildProcess.emit (node:events:509:28)
    at ChildProcess._handle.onexit (node:internal/child_process:295:12)

I have installed MSVC v143 - VS 2022 C++ x64/x86 Spectre-mitigated libs (v14.44-17.14)

Image

I'm using VS Studio 2026. Does anyone have an idea how to solve this problem? I would appreciate any help.

Thank you very much
Regards

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