Encountering the lodash error during the build process: 'Exclude' name not found

I encountered the following lodash error message:

ERROR in node_modules/@types/lodash/common/object.d.ts(1689,12): error TS2304: Cannot find name 'Exclude'. node_modules/@types/lodash/common/object.d.ts(1766,12): error TS2304: Cannot find name 'Exclude'. node_modules/@types/lodash/common/object.d.ts(1842,34): error TS2304: Cannot find name 'Exclude'.

Answer №1

Solution 1
Facing the same issue, I attempted to lower the versions of typescript and lodash without success. Finally, as a last resort, installing @types/lodash solved the problem. Give this a try:

npm i @types/lodash

Hopefully, this resolves your issue.

If Solution 1 does not work, consider trying the following:

Solution 2
The root cause lies in the fact that Exclude was introduced in typescript version 2.8. If you have an @types/lodash version that requires at least typescript 2.8, mismatching versions can occur between lodash and typescript.

To address this, install the latest typescript 2.3 version compatible with lodash by executing the following command :

npm i -D @types/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="117d7e75706279516562233f22">[email protected]</a>

Answer №2

This morning, I encountered the same issue as well. One potential fix that worked for me was adjusting the lodash version in the package.json file:

"lodash": "^4.17.4" => "lodash": "4.17.4"

"@types/lodash": "^4.14.55" => "@types/lodash": "4.14.55"

I'll keep an eye out for a more permanent solution. Hopefully, this adjustment helps you too.

Answer №3

New information has been released regarding lodash typings. reference: https://www.npmjs.com/package/@types/lodash Last updated: Mon, 04 Mar 2019 22:42:42 GMT

For me, changing "@types/lodash": "4.14.121" was effective as it was the most stable version prior to the recent update.

I hope this information proves helpful.

Answer №4

Encountered the same error this evening and attempted to resolve by re-installing all related components without success.

Current setup:

Typescript: 2.2.2 - Ionic: 3, Ionic CLI: 4.1.2 - Cordova: 8.1.2 - Angular CLI: 1.2.4

Temporary solution: Changed typescript version to 3.2.4 => Resolved the issue for me

Update: Resolved the issue by forcibly installing lodash:

npm install --save @types/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="e78b888386948fa7d3c9d6d3c9d6d6df">[email protected]</a>

Answer №5

I came up with a solution to this issue in an unconventional way.

  1. Locate @types/lodash within the confines of package-lock.json

  2. Make alterations to package.json

Answer №6

I've been dealing with this error for the past two days.

This is what my package.json looks like:

{
  "name": "my-app",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "prod": "ng build --prod",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  
  // Dependencies and DevDependencies listed here...
  
  "peerDependencies": {
    "rxjs": "^5.1.0"
  }
}

Update: I discovered that the issue was related to typescript version 2.8 introducing an "exclude" property. I made a change in my package.json file specifying "typescript": "^2.2.0" and updated accordingly.

Answer №7

Encountering a problem, we found the solution by upgrading the TypeScript version to "2.8" and resolving the "Exclude" error.

Keep in mind to use the appropriate TypeScript version for your @angular/cli version.

For example, in my situation, @angular/cli version is "6.0.8" which supports TypeScript version "2.8".

Answer №8

It seems that the problem was due to a change in lodash version from 4.14.118 to 4.14.122. Reverting back to 4.14.118 resolved the issue.

"@types/lodash": "4.14.118",

Answer №9

For me, upgrading angular-tree-component from version 7.2.0 to 8.2.0 fixed the issue I was facing!

Answer №10

Encountered a similar problem but managed to fix it by updating the version of lodash in my package.json file. I switched from "@types/lodash": "^4.14.111" to "@types/lodash": "4.14.121".

Answer №11

I encountered a similar problem but managed to solve it by adding lodash using the command below:

npm install --save @types/[email protected]

Make sure to check the version specified in Package.json and install the corresponding version to fix the issue.

Answer №12

One potential solution is to consider installing a previous version of typescript. For instance, you can use the following command: Example

npm i -D @types/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b1ddded5d0c2d9f1c5c2839f84">[email protected]</a>

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