Duplicate identifier 'GeneratedTypes'.ts(2300) in blank project

[Lorentzo92]

Link to reproduction

No response

Describe the Bug

After generating the types from the blank project template, in the payload-types.ts i get the ts error:

Duplicate identifier 'GeneratedTypes'.ts(2300)
index.d.ts(23, 32): 'GeneratedTypes' was also declared here.
interface GeneratedTypes

declare module 'payload' {
export interface GeneratedTypes extends Config {}
}

And the local api does not infer types.

I got this error these days after opening some repos i didnt touch for a couple of months, it might be an issue with the latest vs code version maybe?!? i tried to reinstall vscode, do some other cleanings but i still get the ts error, even in the blank project.

My package.json is:

{
"name": "issue-types-payloadcms",
"description": "A blank template to get started with Payload",
"version": "1.0.0",
"main": "dist/server.js",
"license": "MIT",
"scripts": {
"dev": "cross-env PAYLOAD_CONFIG_PATH=src/payload.config.ts nodemon",
"build:payload": "cross-env PAYLOAD_CONFIG_PATH=src/payload.config.ts payload build",
"build:server": "tsc",
"build": "yarn copyfiles && yarn build:payload && yarn build:server",
"serve": "cross-env PAYLOAD_CONFIG_PATH=dist/payload.config.js NODE_ENV=production node dist/server.js",
"copyfiles": "copyfiles -u 1 "src/**/*.{html,css,scss,ttf,woff,woff2,eot,svg,jpg,png}" dist/",
"generate:types": "cross-env PAYLOAD_CONFIG_PATH=src/payload.config.ts payload generate:types",
"generate:graphQLSchema": "cross-env PAYLOAD_CONFIG_PATH=src/payload.config.ts payload generate:graphQLSchema",
"payload": "cross-env PAYLOAD_CONFIG_PATH=src/payload.config.ts payload"
},
"dependencies": {
"@payloadcms/bundler-webpack": "^1.0.0",
"@payloadcms/db-mongodb": "^1.0.0",
"@payloadcms/plugin-cloud": "^3.0.0",
"@payloadcms/richtext-slate": "^1.0.0",
"cross-env": "^7.0.3",
"dotenv": "^8.2.0",
"express": "^4.19.2",
"payload": "^2.0.0"
},
"devDependencies": {
"@types/express": "^4.17.9",
"copyfiles": "^2.4.1",
"nodemon": "^2.0.6",
"ts-node": "^9.1.1",
"typescript": "^4.8.4"
}
}

To Reproduce

npx create-payload-app@latest

pnpm generate:types

Payload Version

^2.0.0

Adapters and Plugins

No response

[denisprado]

I resoved this problem putting:

typescript :{ declare: false, } }
in the payload.config.ts

[Lorentzo92]

yes but then using the local api of payload does not infer types

[Lorentzo92]

It seems the issue comes from using the ts version in vs code:
5.6.0-dev.20240623TypeScript Version

[javierlinked]

For the moment fix typescript version on package.json file while they work on a fix.

"typescript": "5.4.5",

as mentioned here.

[jmikrut]

@javierlinked thanks for the comment - you're right!

fix incoming shortly

[sourabpramanik]

Excluding the payload-types.ts in .eslintrc.cjs and tsconfig.json also works. But I am not sure if this is a good approach

[AlessioGr]

This is an issue with TS 5.5 and has been fixed by #6385. Will be available in the upcoming 3.0.0-beta.54. If you need it right now, feel free to use 3.0.0-canary.ee0375f.

If this is still an issue in these versions, please let me know and I'll re-open

[devj3ns]

We are running into the same issue with payload 2.22.1. Will the above fix be included in the next hotfix of V2?

[cbratschi]

Also getting this issue with Payload 2.25.0.

[AlessioGr]

For Payload v2, please pin your TypeScript version to 5.4.5. We currently have no plans supporting TypeScript 5.5+ in Payload v2

[kariyngva]

For Payload v2, please pin your TypeScript version to 5.4.5. We currently have no plans supporting TypeScript 5.5+ in Payload v2

Would you advise against using a workaround for this?

[nachten]

Please provide us an solution for V2 .... kind regards.

[Lorentzo92]

select typescript version 4.9.5 or any version <= 5.4.5

[github-actions]

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