There seems to be a problem with the [at-loader] node_modules\@types\jasmine

My webpack build suddenly started failing with no package updates. I believe a minor version change is causing this issue, but I'm unsure how to resolve it. Can someone provide guidance on what steps to take?

ERROR in [at-loader] node_modules\@types\jasmine\index.d.ts:39:52 
    TS1005: '=' expected.
ERROR in [at-loader] node_modules\@types\jasmine\index.d.ts:39:38 
    TS2371: A parameter initializer is only allowed in a function or constructor implementation.
ERROR in [at-loader] node_modules\@types\jasmine\index.d.ts:39:46 
    TS2304: Cannot find name 'keyof'.

package.json

  "dependencies": {
    "@angular/common": "2.4.7",
    // Add other dependencies here
  },
  "devDependencies": {
    "@angular/compiler-cli": "~2.4.1",
    // Include more dev dependencies info
  }
angulartypescriptnpmwebpackjasmine

Answer №1

It appears that the @types/jasmine library has been updated to the latest version, indicated by the caret symbol in your code:

"@types/jasmine": "^2.2.34",

However, there are reported issues with the most recent version, as referenced in this bug report. To address this, consider changing the version to 2.5.41 in your package.json file:

"devDependencies": {
  "@types/jasmine": "2.5.41"
}

You may need to remove the node-modules folder and run npm install for a fresh installation.

Answer №2

To ensure optimal performance, it is recommended that you update your TypeScript to version 2.1.6 or higher if you are not using Angular 2.

As discussed in this forum, the best approach is to always keep your TypeScript updated to the latest stable minor version within the 2.x branch, which is currently at version 2.1.6 as of Feb 12, 2017. The build log error you are experiencing suggests that you are using an outdated version (2.0.10). The newest 'jasmine' definition file features a syntax check in the 'spyOn()' function that is only compatible with TypeScript versions >=2.1.0. It is highly recommended to upgrade, but if there are compatibility issues holding you back, please report them to the compiler team here: https://github.com/Microsoft/TypeScript/issues.

UPDATE: Make sure to avoid specifying specific TypeScript versions like "typescript": "2.0.10" or "typescript": "~2.0.0" in your package.json. Instead, use the ^ restriction for updating minor version numbers - for example, "typescript": "^2.0.0".

We hope this information proves helpful and apologize for any inconvenience caused.

Answer №3

Even when using Angular 2+, I encountered this issue as well. Instead of reverting back to an older version of Jasmine, what worked for me was updating Typescript.

Here are the steps I took:

  • Modified package.json to reference a newer version of typescript
    • "typescript": "~2.0.9" -> "typescript": "^2.0.9"
  • Executed npm install
  • After completing these steps, the error disappeared.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

difficulty getting less to properly install using npm

After successfully installing node and npm, I encountered an issue where I couldn't install anything like less or bower using npm. When I tried npm -install -g less, it returned the following: C:\Users\user>npm install -g less C:\Us ...

node.jsnpmless

Efficient configuration for pnpm monorepo with TypeScript, vite, and rollup

Struggling to set up a monorepo using pnpm workspaces with typescript, vite for frontends, and rollup for backend microservices. Here's the current project structure: package.json <== all dependencies reside here tsconfig ...

typescriptviterollupmonorepo

Building a Vuetify Form using a custom template design

My goal is to create a form using data from a JSON object. The JSON data is stored in a settings[] object retrieved through an axios request: [ { "id" : 2, "name" : "CAR_NETWORK", "value" : 1.00 }, { "id" : 3, "name" : "SALES_FCT_SKU_MAX", "val ...

typescriptvue.jsaxiosvuetify.js

When attempting to retrieve information from the API, an error occurred stating that property 'subscribe' is not found in type 'void'

I've attempted to use this code for fetching data from an API. Below is the content of my product.service.ts file: import { Injectable } from '@angular/core'; import { HttpClient } from '@angular/common/http'; import { map, Observ ...

jsonangulartypescriptapi

Setting up validation rules in an Angular reactive form array based on field selection can be achieved by following these

I am attempting to incorporate Angular reactive form array validation based on another field. private createNewUserFormGroup(): FormGroup { return new FormGroup({ 'name': new FormControl('', Validators.re ...

angularangular-reactive-forms

I was confused about the distinction between the https.get() and https.request() functions in the Node.js npm package for https

// # Exciting Nodejs Programs! const https = require('https'); https.get('https://www.google.com/', (res) => { console.log('statusCode:', res.statusCode); console.log('headers:', res.headers); res.on ...

javascriptnode.jsrestnpmhttps

Running the nextjs dev server with configuration settings inherited from a different project

Currently, I am working on a Next.js application. I have a folder named landing/pages/ inside the root folder, and I want to run the development server with those pages by using next dev ./landing. The idea is to create a separate app using the same codeba ...

javascriptnode.jsreactjswebpacknext.js

Tips for displaying multiple pages of a Power BI embed report on Mobile layout within the host application

I created a Power BI embed application using Angular on the frontend and C# on the backend. The issue I am facing is that when viewing Power BI reports in mobile layout, reports with multiple pages only show the default page and do not display the other pa ...

angularpowerbipowerbi-embedded

Angular: How to Resolve Validation Error Messages

I have a TypeScript code block: dataxForm: fromGroup this.dataxForm = new FormGroup({ 'Description':new FormControl(null, Validaros.required}; 'Name':new FormControl(null, Validators.required}) Here is an HTML snippet: <mat-divider& ...

angulartypescriptvalidationformgroups

Offering a limited selection of generic type options in TypeScript

Is there a shorthand in TypeScript for specifying only some optional types for generic types? For example, let's say I have a class with optional types: class GenericClass<A extends Type1 = Type1, B extends Type2 = Type2, C extends Type3 = Type3> ...

typescripttypescript-generics

Combining declarations to ensure non-null assets

Let's modify this from @types/aws-lambda to clearly indicate that our intention is for pathParameters to not be null and have a specific format. export interface APIGatewayProxyEventBase<TAuthorizerContext> { body: string | null; headers ...

typescriptaws-lambdatypescript-typings

Error: The installation of /mime/1.2.11/ failed due to an unexpected end of input. Please try running the

Any suggestions on how to resolve this issue? I am encountering an error with .npm/mime/1.2.11/ Try running: sudo npm install express --save-dev npm ERR! Parsing Error npm ERR! Unexpected end of input npm ERR! File: /home/me/.npm/mime/1. ...

npm

conceal the selected button upon moving to a different page

Whenever I click on the details button, it directs me to the details.html file. However, when navigating to another page, the details button still appears and I want to hide it in such cases. <button mat-button (click)="onSelectApp(app)"><mat-ic ...

angularangular-materialangular6

What are the steps to create an object from an array?

Is it possible to create an object from an array in TypeScript? { A: {H: 10, W: 20, S: 30}} using the following data: [ { group: A, name: H, value: 10 }, { group: A, name: W, value: 20}, { group: A, name: S, value: 30} ] L ...

arraystypescriptobjectkey

Ways to access the req.user object within services

After implementing an authentication middleware in NestJs as shown below: @Injectable() export class AuthenticationMiddleware implements NestMiddleware { constructor() {} async use(req: any, res: any, next: () => void) { const a ...

javascriptnode.jstypescriptrequestnestjs

Encountering an issue while trying to run npm init and the

I am encountering an issue while trying to set up NPM in my project. Every time I attempt to initialize it, I get the following error: C:\Users\work-\Documents\MyWork\Folder\utils>npm init npm ERR! code MODULE_NOT_FOUND npm ...

node.jsnpmnode-modules

Typescript's Approach to Currying

In TypeScript, I am attempting to define types for a currying function. The implementation in JavaScript is shown below: function curry1(fn) { return (x) => (fn.length === 1 ? fn(x) : curry1(fn.bind(undefined, x))); } This function works effectively ...

typescripttypescript-generics

Having trouble getting past the package installation step after running "npx create-react-app my-app

While installing packages, please be patient as it may take a few minutes. Currently setting up react, react-dom, and react-scripts with cra-template... yarn add v1.22.10 [1/4] Resolving packages... [2/4] Fetching packages... info <a href="/cdn-cgi/l/e ...

node.jsnpmcreate-react-appnpx

Error occurs in private NPM library stating "Failure in parsing module"

I'm currently in the process of setting up my React library and utilizing it locally (via my company's git repository). During development, I can test my application with npm run start, and everything functions as expected. However, when attemp ...

reactjsnpmwebpack

Angular Notification not visible

I have been attempting to display a notification after clicking a button using the angular-notifier library (version: 4.1.1). To accomplish this, I found guidance on a website called this. Despite following the instructions, the notification fails to app ...

angulartypescript