Angular启动/node_modules/@types/node/index.d.ts (20,1): Invalid ‘reference‘ directive syntax.

 错误：Angular启动/node_modules/@types/node/index.d.ts (20,1): Invalid 'reference' directive syntax.

E:\web-project\angulardemo>npm run start

> angulardemo@0.0.0 start E:\web-project\angulardemo
> ng serve

fallbackLoader option has been deprecated - replace with "fallback"
loader option has been deprecated - replace with "use"
fallbackLoader option has been deprecated - replace with "fallback"
loader option has been deprecated - replace with "use"
fallbackLoader option has been deprecated - replace with "fallback"
loader option has been deprecated - replace with "use"
fallbackLoader option has been deprecated - replace with "fallback"
loader option has been deprecated - replace with "use"
** NG Live Development Server is running on http://localhost:4200. **
 10% building modules 6/6 modules 0 active(node:13196) DeprecationWarning: loaderUtils.parseQuery() received a non-string value which can be problematic, see https://github.com/webpack/loader-utils/issues/56
parseQuery() will be replaced with getOptions() in the next major version of loader-utils.
(Use `node --trace-deprecation ...` to show where the warning was created)
Hash: 77bf3ed9d657b78ba2d8
Time: 6707ms
chunk    {0} polyfills.bundle.js, polyfills.bundle.map (polyfills) 248 kB {4} [initial] [rendered]
chunk    {1} main.bundle.js, main.bundle.map (main) 4.01 kB {3} [initial] [rendered]
chunk    {2} styles.bundle.js, styles.bundle.map (styles) 9.71 kB {4} [initial] [rendered]
chunk    {3} vendor.bundle.js, vendor.bundle.map (vendor) 2.64 MB [initial] [rendered]
chunk    {4} inline.bundle.js, inline.bundle.map (inline) 0 bytes [entry] [rendered]

ERROR in E:/web-project/angulardemo/node_modules/@types/node/index.d.ts (20,1): Invalid 'reference' directive syntax.
webpack: Failed to compile.

解决：E:\web-project\angulardemo\node_modules\@types\node\index.d.ts  去掉3个\\\斜杆修改成 2个斜杠如下面：

// Type definitions for Node.js 6.14
// Project: http://nodejs.org/
// Definitions by: Microsoft TypeScript <https://github.com/Microsoft>
//                 DefinitelyTyped <https://github.com/DefinitelyTyped>
//                 Wilco Bakker <https://github.com/WilcoBakker>
//                 Thomas Bouldin <https://github.com/inlined>
//                 Sebastian Silbermann <https://github.com/eps1lon>
//                 Alorel <https://github.com/Alorel>
//                 Hoàng Văn Khải <https://github.com/KSXGitHub>
//                 Sander Koenders <https://github.com/Archcry>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
// NOTE: These definitions support NodeJS and TypeScript 3.2 and above.

// NOTE: TypeScript version-specific augmentations can be found in the following paths:
//          - ~/base.d.ts         - Shared definitions common to all TypeScript versions
//          - ~/index.d.ts        - Definitions specific to TypeScript 2.1
//          - ~/ts3.2/index.d.ts  - Definitions specific to TypeScript 3.2

// Reference required types from the default lib:
// <reference lib="es2015" />

// Base definitions for all NodeJS modules that are not specific to any version of TypeScript:
// <reference path="base.d.ts" />

// TypeScript 3.2-specific augmentations:

修改完再次运行：

E:\web-project\angulardemo>npm run start

> angulardemo@0.0.0 start E:\web-project\angulardemo
> ng serve

fallbackLoader option has been deprecated - replace with "fallback"
loader option has been deprecated - replace with "use"
fallbackLoader option has been deprecated - replace with "fallback"
loader option has been deprecated - replace with "use"
fallbackLoader option has been deprecated - replace with "fallback"
loader option has been deprecated - replace with "use"
fallbackLoader option has been deprecated - replace with "fallback"
loader option has been deprecated - replace with "use"
** NG Live Development Server is running on http://localhost:4200. **
 10% building modules 6/6 modules 0 active(node:13168) DeprecationWarning: loaderUtils.parseQuery() received a non-string value which can be problematic, see https://github.com/webpack/loader-utils/issues/56
parseQuery() will be replaced with getOptions() in the next major version of loader-utils.
(Use `node --trace-deprecation ...` to show where the warning was created)
Hash: 77bf3ed9d657b78ba2d8
Time: 6129ms
chunk    {0} polyfills.bundle.js, polyfills.bundle.map (polyfills) 248 kB {4} [initial] [rendered]
chunk    {1} main.bundle.js, main.bundle.map (main) 4.01 kB {3} [initial] [rendered]
chunk    {2} styles.bundle.js, styles.bundle.map (styles) 9.71 kB {4} [initial] [rendered]
chunk    {3} vendor.bundle.js, vendor.bundle.map (vendor) 2.64 MB [initial] [rendered]
chunk    {4} inline.bundle.js, inline.bundle.map (inline) 0 bytes [entry] [rendered]
webpack: Compiled successfully.