All Questions
Tagged with npm typescript
2,685
questions
770
votes
36
answers
1.6m
views
Unable to resolve dependency tree error when installing npm packages
When trying to install the npm packages using npm i command, I am getting the following exception:
I have tried reinstalling the Node.js package and setting the proxy to off using:
set HTTP_PROXY=
...
- 9,099
529
votes
33
answers
691k
views
Can't run my Node.js Typescript project TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for /app/src/App.ts
When I try to start my app on Heroku I got the following stack trace.
It is just a basic ts.app like you see with ts-node and nodemon.
I am really interested in what the answer is going to be.
2020-05-...
- 5,353
497
votes
5
answers
148k
views
How do I decide whether @types/* goes into `dependencies` or `devDependencies`?
I use TypeScript 2 in my project. I'd like to use some js library, but also typings for that library. I can install types with simple npm install @types/some-library. I'm not sure if I should --save ...
- 6,206
414
votes
16
answers
689k
views
npm WARN ... requires a peer of ... but none is installed. You must install peer dependencies yourself
I tried to run a project downloaded from github. Unfortunately, during npm install the following warnings were shown. I tried to change the version based on this question. However, I had a problem, ...
user7304253
291
votes
30
answers
517k
views
'tsc command not found' in compiling typescript
I want to install typescript, so I used the following command:
npm install -g typescript
and test tsc --version, but it just show 'tsc command not found'. I have tried many ways as suggested in ...
- 3,430
290
votes
11
answers
483k
views
How to update TypeScript to latest version with npm?
Currently I have TypeScript 1.0.3.0 version installed on my machine.
I want to update it to latest one i.e. 2.0.
How to do this with npm?
- 2,991
206
votes
22
answers
66k
views
Appending .js extension on relative import statements during Typescript compilation (ES6 modules)
This seems to be a trivial problem, but it is not very obvious what settings/configurations need to be used to solve this issue.
Here are the Hello World program directory structure and the source ...
- 7,175
179
votes
9
answers
169k
views
ERROR in The Angular Compiler requires TypeScript >=3.1.1 and <3.2.0 but 3.2.1 was found instead
I am getting this error
ERROR in The Angular Compiler requires TypeScript >=3.1.1 and <3.2.0 but 3.2.1 was found instead.
Seems like Typescript updated but the Angular Compiler doesn't like ...
- 34.7k
140
votes
19
answers
114k
views
NPM package cannot be used as a JSX Component - Type errors
Ive been getting these strange type errors on my typescript project for certain packages.
Ex:
'TimeAgo' cannot be used as a JSX component.
Its instance type 'ReactTimeago<keyof IntrinsicElements |...
- 1,698
127
votes
5
answers
119k
views
How to consume npm modules from typescript?
I'm giving a shot at typescript. It works fine at the hello world stage. I'm now trying to use a npm module :
index.ts =
import _ = require('lodash')
console.log(_.toUpper('Hello, world !'))
This ...
- 19.5k
119
votes
11
answers
125k
views
Is there a way to use npm scripts to run tsc -watch && nodemon --watch?
I'm looking for a way to use npm scripts to run tsc --watch && nodemon --watch at the same time. I can run these commands independently, but when I want run both of them, only the first one is ...
- 1,313
111
votes
6
answers
39k
views
Writing npm modules in TypeScript
I am working on my first npm module. I briefly worked with TypeScript before and a big problem was that for many modules there were no definition files available. So I thought it would be a good idea ...
- 6,464
106
votes
8
answers
198k
views
How to install and run Typescript locally in npm?
I want to install and run Typescript (i.e. no global dependencies).
Here is my package.json file:
{
"name": "foo",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
...
- 28.3k
103
votes
4
answers
53k
views
TypeScript 2: custom typings for untyped npm module
After trying suggestions posted in other places, I find myself unable to get a typescript project running that uses an untyped NPM module. Below is a minimal example and the steps that I tried.
For ...
- 5,883
91
votes
8
answers
260k
views
"You may need an additional loader to handle the result of these loaders."
I am currently trying to build a State Management Library for ReactJs. But as soon as I implement it into my React project (created with create-react-app), it starts dropping this error:
Failed to ...
- 1,247
75
votes
3
answers
120k
views
How to import CSS from node_modules in webpack angular2 app
Let's say that we start with the following starter pack:
https://github.com/angularclass/angular2-webpack-starter
After npm install and npm run start everything works fine.
I want to add an external ...
- 2,583
71
votes
17
answers
113k
views
How to debug 'npm ERR! 403 In most cases, you or one of your dependencies are requesting a package version that is forbidden by your security policy.'
I am currently trying to set up a Jenkins and a private npm repository (Sonatype Nexus).
I get the following error when I try to publish to the repository within a Jenkins build pipeline.
+ npm ...
- 5,168
70
votes
13
answers
92k
views
Cannot find name 'it' in Jest TypeScript
I try to create an intial setup for Jest in React + TypeScript. I have completed the initial setup and try to check whether the test runs.
When I run the test using the command npm test, I am getting ...
- 3,513
68
votes
2
answers
43k
views
Missing basic DOM types in TypeScript project
I am setting a web app up in TypeScript and I seem to be missing some basic types I need.
When I compile (npm run build), I get the following errors,
error TS2304: Cannot find name 'HTMLElement'.
...
- 49.3k
67
votes
2
answers
41k
views
What is the pwa-node type launch configuration on VSCode?
I noticed that the default launch configuration generated by VSCode for npm debugging (Launch via NPM) sets the configuration type as "pwa-node" by default.
Adding "Launch via NPM" ...
- 2,097
65
votes
3
answers
22k
views
How to have npm install a typescript dependency from a GitHub url?
Consider the following scenario:
There is a code library. The library is written in TypeScript and the typescript code is published in GitHub. The package.json file has a build script which creates ...
- 2,576
61
votes
19
answers
48k
views
This is not the tsc command you are looking for
When I run tsc in the terminal (it does not matter where) I get returned:
$ npx tsc --version
This is not the tsc command you are looking for
To get access to the TypeScript compiler,...
- 2,738
61
votes
8
answers
34k
views
Next.js is not recognizing '@types/react'
When I try to run my Next.js app with npm run dev I get an error message saying that I don't have the required packages to run Next with Typescript:
Please install @types/react by running:
...
- 894
60
votes
17
answers
59k
views
Typescript: Debug Failure. False expression: Non-string value passed to `ts.resolveTypeReferenceDirective`
I've an npm command line application that i've built not so long ago and it worked fine. Now that i've updated it, and due to changes in the versions of typescript over the period, i'm getting an ...
- 8,991
58
votes
12
answers
115k
views
How to upgrade Typescript to the latest version?
I have a MacBook Pro with OS X 10.8.2
Some time ago I installed Typescript and today I'd like to upgrade that installation to the latest version available (so far, v0.8.3).
I wrote this command from ...
- 3,830
56
votes
9
answers
67k
views
The Angular Compiler requires TypeScript >=2.7.2 and <2.8.0 but 2.8.3 was found instead
I starting getting this error on my Angular app:
The Angular Compiler requires TypeScript >=2.7.2 and <2.8.0 but 2.8.3
was found instead
and when I try to downgrade typescript to the right ...
- 8,810
55
votes
4
answers
12k
views
Go to the TypeScript source file instead of the type definition file in VS Code
I created a custom npm library that is used in some root projects. This library is written in TypeScript. All sources are under a /src folder.
The tsconfig.json of the library contains those compiler ...
- 8,636
51
votes
5
answers
126k
views
How to compile typescript using npm command?
I just wanted to know is there any command which will directly compile the typescript code and get the output. Right now, what I am doing is, every time when I make changes in the file I have to re-...
- 3,461
48
votes
11
answers
65k
views
How to use bootstrap 4 in angular 2?
I'm building an angular 2 app written in typescript. It would use the bootstrap 4 framework in combination with some custom theming, is this possible?
The "ng2-bootstrap" npm package is not working ...
- 1,547
44
votes
8
answers
137k
views
Module not found: Error can't resolve 'child_process', how to fix?
I'm trying to create a JupyterLab extension, it uses typescript.
I've successfully added the package "@types/node" allowing me to use packages such as 'require('http')'.
But as soon as I try ...
- 2,403
43
votes
1
answer
19k
views
typings vs @types NPM scope
In some cases typings is used for handling TypeScript definitions (e.g. angular/angular2-seed).
In other cases scoped NPM @types packages are used with no typings involved (e.g. AngularClass/angular2-...
- 217k
41
votes
6
answers
44k
views
How include node_modules in output directory with TypeScript
I want to know if it possible copy node_modules folder into output directory after run tsc command.
My situation it that I have a project with TypeScript and use some npm packages. And i need that my ...
- 4,063
41
votes
4
answers
32k
views
How can I use "exports" in package.json for nested submodules and TypeScript?
I want to take advantage of the new-ish "exports" feature of Node.js/package.json so that I can do the following:
"exports": {
".": "./dist/index.js",
"...
- 27.6k
40
votes
7
answers
49k
views
Cannot find module 'ngx-bootstrap'
I'm having an issue in my application with ngx-bootstrap whereby it now can't detect the module unless you specify the path
For example:
import { BsModalService, BsModalRef } from 'ngx-bootstrap';
...
- 579
39
votes
10
answers
37k
views
React npm start not working : 'No version of chokidar available'
I cloned my already working React-Typescript app on Github Pages, from Github and wanted to make some changes. I ran npm install and installed all the dependencies but when I run npm start, I got this ...
- 1,980
37
votes
5
answers
11k
views
How to publish TypeScript modules on NPM without "dist" in import?
I'm trying to publish a typescript library on NPM but I can't to have a "good" path after publishing.
I follow several guide on this point but I'm not found a solution.
The problem: So, consider the ...
- 867
36
votes
2
answers
15k
views
How do I set a peer dependency optional?
I'm developing a module A. The user can, optionally, inject a Winston logger to my module, therefore winston is its peer dependency.
Whenever I install my module A in another module where I don't want ...
- 4,183
36
votes
2
answers
25k
views
How to add a typescript definition file to a npm package?
Is there a way to add typescript definitions (.d.ts files) to a pure javascript project directly (e.g. in package.json). I can't find any documentation on that.
- 34k
35
votes
9
answers
99k
views
npm build gives "Ineffective mark-compacts near heap limit Allocation failed"
I have a reactjs/typescript project, running on windows 10. Im trying to build by ts-scripts with
"rimraf ../wwwroot/* && react-scripts-ts build && copyfiles
./build/**/* ../...
- 2,793
35
votes
1
answer
8k
views
Use a local module, using local dependency [duplicate]
I'm trying to include a local library, so i follow theese 2 tutorials: how to create library, how to consume local library. So, i have a nice sample library (it has package.json, index.ts, etc), i try ...
- 4,826
34
votes
5
answers
8k
views
Where are the TypeScript type declarations for Sign in With Google (GSI) library?
I'm implementing "Sign in with Google" using the Google "GSI" library. My application uses Next.js and TypeScript, so I'm looking for:
An npm package including the GSI client ...
- 36.4k
34
votes
5
answers
17k
views
Sharing a typescript library in a monorepo
I'm trying to setup a monorepo with 3 services sharing some library code.
This is the current situation:
repo: web
pdf/
package.json
reference to shared-ts using github url
tsconfig.json
...
- 5,920
32
votes
6
answers
61k
views
Typescript build getting errors from node_modules folder
I am running a typescript build and getting errors in node_modules. Why isn't it ignoring this folder? I have it in the exclude section of my tsconfig.json. The really strange thing is that I have ...
- 6,334
32
votes
4
answers
30k
views
Can't Resolve "encoding" Module Error While Using Nextjs-13 + Supabase
I'm trying to use Supabase for inserting/collecting data from my form. But when I compile I got encoding module is not found error. I already tried cache cleaning and re-installing npm modules. They ...
- 539
32
votes
9
answers
28k
views
How to resolve: "Definition for rule '@typescript-eslint/consistent-type-assertions' was not found"
My React app is not failing to compile due to the error: Definition for rule '@typescript-eslint/consistent-type-assertions' was not found
I'm kind of at a loss. I'm unable to find any current rule ...
- 321
30
votes
7
answers
13k
views
Custom Library component is not a known element, but app compiles and runs
The Problem
My html files warn that my custom components/pipes 'are not a known element'. However building and running the application works as intended, and the custom components/pipes are ...
- 397
30
votes
1
answer
8k
views
How to relate a version of @types package to the versions of the associated JS package?
I am working on a nodejs project with typescript 2.2 that is using node 6.3.1 and I want to migrate from using typings to using @types. By doing so I ran into a set of questions related to whether ...
- 358
29
votes
5
answers
98k
views
Module not found: Error: Can't resolve 'stream' in 'C:\dev\jszip-test\node_modules\jszip\lib'
I'm using jszip v3.2.1 in an angular 7 application. When I build my project (running, for example, npm start) I'm getting the following error:
ERROR in ./node_modules/jszip/lib/readable-stream-...
- 15.7k
28
votes
5
answers
27k
views
TypeScript: Extend Express.Session interface with own class
I'm working on a Typescript project with npm packages. I want to add a property to the Express.Session interface.
example Class:
class User {
name: string;
email: string;
password: ...
- 639
27
votes
3
answers
21k
views
How to use npm link with a module written using TypeScript for development?
I am building a lib using TypeScript and Webpack.
To develop this library I have created a separate test project (written using JS) and linked the library using npm link <package-name>.
The ...
- 537