AWS CDK -- Cannot find module '@aws-cdk/aws-ec2'

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I just started playing around with AWS CDK yesterday and I found something very weird.

First of all, I'm using TypeScript for my CDK app (I used cdk init --language typescript to generate the project files and I tried to import aws-ec2 module so this is what I did:

import cdk = require('@aws-cdk/core');
import ec2 = require('@aws-cdk/aws-ec2');

export class vpcStack extends cdk.Stack {
  constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {

//.... all other codes go here....

However, when importing the aws-ec2 module this way, I got this error when trying to deploy the stack:

⨯ Unable to compile TypeScript:
lib/cdk-type_script-stack.ts:2:22 - error TS2307: Cannot find module '@aws-cdk/aws-ec2'.

2 import ec2 = require('@aws-cdk/aws-ec2');
                       ~~~~~~~~~~~~~~~~~~

Subprocess exited with error 1

This is very weird because the API docs right here clearly stated that this is how I should import the aws-ec2 module in TypeScript

aws-cdk amazon-web-services amazon-ec2 module
4 Answers

You need to install the node package before you could import and use it

Execute below on the command line to install npm package for aws-cdk

npm i @aws-cdk/aws-ec2
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npm install (for install lib)
npm run build (for compile your code)

After that, you can run:

cdk synth
cdk deploy
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user_42843200

In addition to @juned-ashan 's answer, verify that you are installing the correct module version that corresponds to your cdk version (and other cdk modules installed).

For example:

$ npm install --save @aws-cdk/aws-ec2@1.10.0

Note: not enough points to add this as a comment in Juned's answer.

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