Cannot find module 'typescript'

Question

Yesterday works but today I have this error. I reinstall globally and local

npm i --save-dev typescript
npm i -g typescript

and lower version

npm install  -g [email protected]

remove from directory AppData\Roaming\npm but this doesnt work. remove node_modules too

tsconfig

{
    "compilerOptions": {
        "target": "es5",
        "removeComments": true,
        "outFile": "app.js",
        "lib": ["es2017", "dom"]
    },
    "files":[
        "app.ts",
        "inter.ts",
    ]
}

I run command

npx ts

and then I had got error :

Cannot find module 'typescript'

$ npm -v
6.13.4
$ node -v
v12.16.1

So, this is the package you are trying to run? npm:ts.

Aluan Haddad
– Aluan Haddad

2020-09-21 20:43:30 +00:00
Commented Sep 21, 2020 at 20:43 — Aluan Haddad
– Aluan Haddad, Commented Sep 21, 2020 at 20:43
I run compile with command npx ts

zloctb
– zloctb

2020-09-22 08:38:11 +00:00
Commented Sep 22, 2020 at 8:38 — zloctb
– zloctb, Commented Sep 22, 2020 at 8:38

PatricNox · Accepted Answer · 2020-09-21 17:50:13Z

8

Sometimes you may need to link the package manually, as it may conflict if there's an existing node_modules already.

Try this:

npm link typescript

An alternative solution would be to delete the node_modules folder and then run npm install again.

answered Sep 21, 2020 at 17:50

PatricNox

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2 Comments

zloctb Over a year ago

npm link typescript and delete node_module didn't help. thank for your help. In another computer perfect ......

PatricNox Over a year ago

@zloctb I've read somewhere that it has to be done in this particular order, for some reason: npm install -g typescript npm link typescript

Rundong-MSFT · Accepted Answer · 2023-09-27 08:43:20Z

1

Add "typescript": "~4" to package.json's devDependencies works for me.

answered Sep 27, 2023 at 8:43

Rundong-MSFT

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Comments

Ciarán Mac Lochlainn · Accepted Answer · 2023-06-15 10:45:45Z

0

What worked for me was to follow the advised steps in exact sequence:

Delete node_module folder
Delete package-lock.json
npm install
npm install typescript
npm link typescript
npm start
For any further missing dependencies do npm install [dep] followed by npm link [dep]

answered Jun 15, 2023 at 10:45

Ciarán Mac Lochlainn

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Comments

Jose Boretto Blengino · Accepted Answer · 2023-08-25 09:54:39Z

0

Update your node version, node -v v12.16.1 is too old.

You can do it with https://github.com/nvm-sh/nvm

nvm use 18

answered Aug 25, 2023 at 9:54

Jose Boretto Blengino

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