I generated Angular 4 app 3 weeks ago using the @angular/cli. After 2 weeks, I tried to run it with the command line ng serve but I am prompted an error below:
Cannot find module 'typescript'
Error: Cannot find module 'typescript'
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (C:\Users\mypc\Documents\Angular Projects\my-angular-app\node_modules\@angular\cli\models\config\config.js:5:12)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)
Do you have any idea how to fix this? Thanks.
For me just running the below command is not enough (though a valid first step):
npm install -g typescript
The following command is what you need (I think deleting node_modules works too, but the below command is quicker)
npm link typescript
This should do the trick,
npm install -g typescript
I was able to solve this problem by removing node_modules then running npm install