當我使用'npm start'命令時，找不到名稱'Promise'錯誤

Question

Angular 2是新的。我完成了5 min Quickstart教程並繼續嘗試這個ScotchIO example。我只是試圖使用與示例中相同的確切代碼。當我在通過npm install安裝節點模塊後運行npm start命令時，出現異常。

[system]:~/Coding/Angular2/SecondApp$ npm start 

> learning-angular@1.0.0 start /home/swetha/Coding/Angular2/SecondApp 
> tsc && concurrently "npm run tsc:w" "npm run lite" 

node_modules/@angular/core/src/application_ref.d.ts(79,88): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/application_ref.d.ts(137,42): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/application_ref.d.ts(196,33): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/change_detection/differs/default_keyvalue_differ.d.ts(24,15): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/change_detection/differs/default_keyvalue_differ.d.ts(26,16): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/di/reflective_provider.d.ts(115,123): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/di/reflective_provider.d.ts(115,165): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/async.d.ts(34,33): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/async.d.ts(35,45): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/collection.d.ts(1,25): error TS2304: Cannot find name 'MapConstructor'. 
node_modules/@angular/core/src/facade/collection.d.ts(2,25): error TS2304: Cannot find name 'SetConstructor'. 
node_modules/@angular/core/src/facade/collection.d.ts(4,27): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/collection.d.ts(4,39): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/collection.d.ts(7,9): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/collection.d.ts(8,30): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/collection.d.ts(11,43): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/collection.d.ts(12,27): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/collection.d.ts(14,23): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/collection.d.ts(15,25): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/collection.d.ts(100,41): error TS2304: Cannot find name 'Set'. 
node_modules/@angular/core/src/facade/collection.d.ts(101,22): error TS2304: Cannot find name 'Set'. 
node_modules/@angular/core/src/facade/collection.d.ts(102,25): error TS2304: Cannot find name 'Set'. 
node_modules/@angular/core/src/facade/lang.d.ts(11,17): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/lang.d.ts(12,17): error TS2304: Cannot find name 'Set'. 
node_modules/@angular/core/src/facade/lang.d.ts(68,59): error TS2304: Cannot find name 'Map'. 
node_modules/@angular/core/src/facade/promise.d.ts(9,14): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/promise.d.ts(15,32): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/promise.d.ts(16,38): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/promise.d.ts(17,35): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/promise.d.ts(17,93): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/promise.d.ts(18,34): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/promise.d.ts(18,50): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/promise.d.ts(19,32): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/promise.d.ts(19,149): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/facade/promise.d.ts(20,43): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/linker/compiler.d.ts(13,59): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/linker/component_resolver.d.ts(9,58): error TS2304: Cannot find name 'Promise'. 
node_modules/@angular/core/src/linker/component_resolver.d.ts(13,49): error TS2304: Cannot find name 'Promise'. 

這該怎麼我的項目文件夾結構看起來像：

[system]-ThinkPad-L420:~/Coding/Angular2/SecondApp$ ls -ltr 
total 48 
-rw-rw-r-- 1 admin admin 204 Jul 26 21:40 typings.json 
-rw-rw-r-- 1 admin admin 343 Jul 26 21:40 tsconfig.json 
-rw-rw-r-- 1 admin admin 22 Jul 26 21:40 style.css 
-rw-rw-r-- 1 admin admin 19 Jul 26 21:40 script.js 
-rw-rw-r-- 1 admin admin  0 Jul 26 21:40 README.md 
-rw-rw-r-- 1 admin admin 1076 Jul 26 21:40 package.json 
-rw-rw-r-- 1 admin admin 843 Jul 26 21:40 index.html 
drwxrwxr-x 2 admin admin 4096 Jul 26 21:54 app 
drwxr-xr-x 354 root root 12288 Jul 26 22:53 node_modules 
-rw-rw-r-- 1 admin admin 1774 Jul 26 23:09 systemjs.config.js 
-rw-rw-r-- 1 admin admin 2932 Jul 26 23:09 npm-debug.log 

試了幾個建議，計算器，但它是沒有幫助的。

Answer 1

如您在項目結構中所示，沒有typings文件夾，您從第一個5min QuickStart示例中錯過了它。

npm安裝後，typings文件夾無法顯示。如果是這樣，請手動安裝。

npm run typings install 

這應該可以解決問題。