Error building VSCode in Windows

[warpdesign]

• VSCode Version: current master
• OS Version: Windows 10 64bit

Steps to Reproduce:

1. checkout vscode git repository
2. type scripts\npm.bat install
3. type npm run watch
4. type .\scripts\code.bat

The following error appears in the console:

E:\Docs\Dev\vscode>.\scripts\code.bat

{ Error: Cannot find module './build/Release/keymapping'
    at Module._resolveFilename (module.js:470:15)
    at Function.Module._resolveFilename (E:\Docs\Dev\vscode\.build\electron\resources\electron.asar\common\reset-search-paths.js:35:12)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at NativeBinding._init (E:\Docs\Dev\vscode\node_modules\native-keymap\index.js:15:22)
    at NativeBinding.onDidChangeKeyboardLayout (E:\Docs\Dev\vscode\node_modules\native-keymap\index.js:37:10)
    at Object.exports.onDidChangeKeyboardLayout (E:\Docs\Dev\vscode\node_modules\native-keymap\index.js:61:18)
    at KeyboardLayoutMonitor.onDidChangeKeyboardLayout (E:\Docs\Dev\vscode\out\vs\code\electron-main\keyboard.js:26:30)
    at CodeApplication.registerListeners (E:\Docs\Dev\vscode\out\vs\code\electron-main\app.js:148:55) code: 'MODULE_NOT_FOUND' }
[7192:1016/143148.321:INFO:CONSOLE(224)] "Loading "gc-signals" failed", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (224)
[7192:1016/143148.321:INFO:CONSOLE(225)] "Detail: ", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (225)
[7192:1016/143148.322:INFO:CONSOLE(227)] "Error: A dynamic link library (DLL) initialization routine failed.
\\?\E:\Docs\Dev\vscode\node_modules\gc-signals\build\Release\gcsignals.node
    at process.module.(anonymous function) [as dlopen] (ELECTRON_ASAR.js:173:20)
    at Object.Module._extensions..node (module.js:598:18)
    at Object.module.(anonymous function) [as .node] (ELECTRON_ASAR.js:173:20)
    at Module.load (module.js:488:32)
    at tryModuleLoad (module.js:447:12)
    at Function.Module._load (module.js:439:3)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (E:\Docs\Dev\vscode\node_modules\gc-signals\src\index.js:8:18)
    at Object.<anonymous> (E:\Docs\Dev\vscode\node_modules\gc-signals\src\index.js:67:3)", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (227)
[7192:1016/143148.322:INFO:CONSOLE(229)] "Here are the modules that depend on it:", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (229)
[7192:1016/143148.322:INFO:CONSOLE(230)] "vs/workbench/api/electron-browser/mainThreadHeapService", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (230)

E:\Docs\Dev\vscode>
E:\Docs\Dev\vscode>
E:\Docs\Dev\vscode>.\scripts\code.bat

{ Error: Cannot find module './build/Release/keymapping'
    at Module._resolveFilename (module.js:470:15)
    at Function.Module._resolveFilename (E:\Docs\Dev\vscode\.build\electron\resources\electron.asar\common\reset-search-paths.js:35:12)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at NativeBinding._init (E:\Docs\Dev\vscode\node_modules\native-keymap\index.js:15:22)
    at NativeBinding.onDidChangeKeyboardLayout (E:\Docs\Dev\vscode\node_modules\native-keymap\index.js:37:10)
    at Object.exports.onDidChangeKeyboardLayout (E:\Docs\Dev\vscode\node_modules\native-keymap\index.js:61:18)
    at KeyboardLayoutMonitor.onDidChangeKeyboardLayout (E:\Docs\Dev\vscode\out\vs\code\electron-main\keyboard.js:26:30)
    at CodeApplication.registerListeners (E:\Docs\Dev\vscode\out\vs\code\electron-main\app.js:148:55) code: 'MODULE_NOT_FOUND' }
[10024:1016/145316.117:INFO:CONSOLE(224)] "Loading "gc-signals" failed", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (224)
[10024:1016/145316.121:INFO:CONSOLE(225)] "Detail: ", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (225)
[10024:1016/145316.125:INFO:CONSOLE(227)] "Error: A dynamic link library (DLL) initialization routine failed.
\\?\E:\Docs\Dev\vscode\node_modules\gc-signals\build\Release\gcsignals.node
    at process.module.(anonymous function) [as dlopen] (ELECTRON_ASAR.js:173:20)
    at Object.Module._extensions..node (module.js:598:18)
    at Object.module.(anonymous function) [as .node] (ELECTRON_ASAR.js:173:20)
    at Module.load (module.js:488:32)
    at tryModuleLoad (module.js:447:12)
    at Function.Module._load (module.js:439:3)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (E:\Docs\Dev\vscode\node_modules\gc-signals\src\index.js:8:18)
    at Object.<anonymous> (E:\Docs\Dev\vscode\node_modules\gc-signals\src\index.js:67:3)", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (227)
[10024:1016/145316.126:INFO:CONSOLE(229)] "Here are the modules that depend on it:", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (229)
[10024:1016/145316.126:INFO:CONSOLE(230)] "vs/workbench/api/electron-browser/mainThreadHeapService", source: file:///E:/Docs/Dev/vscode/out/vs/loader.js (230)

[mjbvz]

Possibly #34419

Which npm version are you using? We only support npm 4 current.

[warpdesign]

@mjbvz I was running npm 5.3. I downgraded to npm 4.6.1 typed git clean -xfd and re-ran scripts\npm.bat install and npm install but I still get the same error.

[davidsk]

Yeah, I'm seeing this too.

[davidsk]

Downgraded to npm 4 and seems to be working

[warpdesign]

I installed [email protected], cleaned up using git clean -xfd, also removed any files that were modified by previous build/install process using git reset --hard and after doing the process all over again (it's so slow on Windows) it's now working.

I suggest adding a note about the version in the How-To-Contribute file to indicate that only npm 4 is supported for now.