C:\Users\chais>electron-forge init project1
√ Checking your system
? WARNING: The specified path: "C:\Users\chais\project1" is not empty, do you wish to continue? Yes
√ Initializing Project Directory
√ Initializing Git Repository
√ Copying Starter Files
√ Initializing NPM Module
× Installing NPM Dependencies

An unhandled error has occurred inside Forge:
Failed to install modules: ["electron-prebuilt-compile"]

With output: Exited with status 1
Error: Failed to install modules: ["electron-prebuilt-compile"]

With output: Exited with status 1
    at C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\dist\util\install-dependencies.js:55:13
    at Generator.throw (<anonymous>)
    at Generator.tryCatcher (C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\node_modules\bluebird\js\release\util.js:16:23)
    at PromiseSpawn._promiseRejected (C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\node_modules\bluebird\js\release\generators.js:107:10)
    at Promise._settlePromise (C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\node_modules\bluebird\js\release\promise.js:611:26)
    at Promise._settlePromise0 (C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\node_modules\bluebird\js\release\promise.js:649:10)
    at Promise._settlePromises (C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\node_modules\bluebird\js\release\promise.js:725:18)
    at _drainQueueStep (C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\node_modules\bluebird\js\release\async.js:93:12)
    at _drainQueue (C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\node_modules\bluebird\js\release\async.js:86:9)
    at Async._drainQueues (C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\node_modules\bluebird\js\release\async.js:102:5)
    at Immediate.Async.drainQueues [as _onImmediate] (C:\Users\chais\AppData\Roaming\npm\node_modules\electron-forge\node_modules\bluebird\js\release\async.js:15:14)
    at processImmediate (node:internal/timers:464:21)

解决办法：
配置ELECTRON_MIRROR为国内源

解决的方法就是在~/.npmrc里做如下设置，

registry=https://registry.npm.taobao.org/
electron_mirror=https://npm.taobao.org/mirrors/electron/

如果您使用的是yarn，请将 ~/.npmrc里添加以下配置

ELECTRON_MIRROR=https://npm.taobao.org/mirrors/electron/