Cannot find module 'tslib' on fresh installation #8162

alexwhin · 2020-08-03T11:47:51Z

Current behavior:

On a fresh install and launch (yarn run cypress open) I am receiving the following:

Message: Cannot find module 'tslib'
Require stack:
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/reporter/lib/resolve-dist.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/controllers/reporter.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/routes.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/server.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/project.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/gui/events.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/modes/interactive.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/modes/index.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/cypress.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/index.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/index.js
- 

Stack trace:
Error: Cannot find module 'tslib'
Require stack:
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/reporter/lib/resolve-dist.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/controllers/reporter.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/routes.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/server.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/project.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/gui/events.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/modes/interactive.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/modes/index.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/cypress.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/index.js
- /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/index.js
- 
    at Module._resolveFilename (internal/modules/cjs/loader.js:798:15)
    at Function../lib/common/reset-search-paths.ts.Module._resolveFilename (electron/js2c/browser_init.js:7632:16)
    at Module._load (internal/modules/cjs/loader.js:691:27)
    at Module._load (electron/js2c/asar.js:717:26)
    at Function.Module._load (electron/js2c/asar.js:717:26)
    at Function.Module._load (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/override_require.js:18:25)
    at Module.require (internal/modules/cjs/loader.js:853:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.<anonymous> (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/reporter/lib/resolve-dist.js:2:15)
    at Module._compile (internal/modules/cjs/loader.js:968:30)
    at Module.m._compile (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/ts-node/src/index.ts:536:23)
    at Module._extensions..js (internal/modules/cjs/loader.js:986:10)
    at Object.require.extensions.<computed> [as .js] (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/ts-node/src/index.ts:539:12)
    at Module.load (internal/modules/cjs/loader.js:816:32)
    at Module._load (internal/modules/cjs/loader.js:728:14)
    at Module._load (electron/js2c/asar.js:717:26)
    at Function.Module._load (electron/js2c/asar.js:717:26)
    at Function.Module._load (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/override_require.js:18:25)
    at Module.require (internal/modules/cjs/loader.js:853:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.<anonymous> (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/controllers/reporter.js:2:18)
    at Module._compile (internal/modules/cjs/loader.js:968:30)
    at Module.m._compile (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/ts-node/src/index.ts:536:23)
    at Module._extensions..js (internal/modules/cjs/loader.js:986:10)
    at Object.require.extensions.<computed> [as .js] (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/ts-node/src/index.ts:539:12)
    at Module.load (internal/modules/cjs/loader.js:816:32)
    at Module._load (internal/modules/cjs/loader.js:728:14)
    at Module._load (electron/js2c/asar.js:717:26)
    at Function.Module._load (electron/js2c/asar.js:717:26)
    at Function.Module._load (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/override_require.js:18:25)
    at Module.require (internal/modules/cjs/loader.js:853:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.<anonymous> (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/routes.js:9:18)
    at Module._compile (internal/modules/cjs/loader.js:968:30)
    at Module.m._compile (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/ts-node/src/index.ts:536:23)
    at Module._extensions..js (internal/modules/cjs/loader.js:986:10)
    at Object.require.extensions.<computed> [as .js] (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/ts-node/src/index.ts:539:12)
    at Module.load (internal/modules/cjs/loader.js:816:32)
    at Module._load (internal/modules/cjs/loader.js:728:14)
    at Module._load (electron/js2c/asar.js:717:26)
    at Function.Module._load (electron/js2c/asar.js:717:26)
    at Function.Module._load (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/override_require.js:18:25)
    at Module.require (internal/modules/cjs/loader.js:853:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Server.createRoutes (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/server.js:174:12)
    at /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/server.js:220:12
    at tryCatcher (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/util.js:16:23)
    at Function.Promise.attempt.Promise.try (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/method.js:39:29)
    at Server.open (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/server.js:195:23)
    at /Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/lib/project.js:135:26
    at tryCatcher (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:547:31)
    at Promise._settlePromise (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:604:18)
    at Promise._settlePromise0 (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:649:10)
    at Promise._settlePromises (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/promise.js:729:18)
    at _drainQueueStep (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:93:12)
    at _drainQueue (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:86:9)
    at Async._drainQueues (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:102:5)
    at Immediate.Async.drainQueues [as _onImmediate] (/Users/Alex/Library/Caches/Cypress/4.11.0/Cypress.app/Contents/Resources/app/packages/server/node_modules/bluebird/js/release/async.js:15:14)
    at processImmediate (internal/timers.js:439:21)

Desired behavior:

I expected to be met with the Cypress test runner.

Test code to reproduce

yarn add cypress
yarn run cypress open

Versions

Cypress 4.11.0
macOS Catalina 10.15.5 Beta

The text was updated successfully, but these errors were encountered:

jennifer-shehane · 2020-08-04T07:10:56Z

I'm not able to reproduce this from the instructions given.

Can you provide a repo of code that reproduces this issue? Do you have any specific code in cypress folders / cypress.json, tsconfig, other dependencies in your project for example? Did you start from some cli framework to add cypress tests? Node.js version / yarn version?

hetunandu · 2020-08-04T11:54:42Z

Faced this issue as well. I had some issues with some modules so i did a fresh yarn install after deleting the yarn.lock and node_modules.

PR link
Github Actions failed run

alexbainter · 2020-08-07T17:12:31Z

I ran into this issue in a TypeScript project and it was due to #7503, which will apparently be resolved in v5. For now, I switched to v4.3 which doesn't have this problem.

shaharkazaz · 2020-08-17T08:01:00Z

@jennifer-shehane I created a new nx workspace and ran into this issue as well. nothing special done.
as metalex9 mentioned v4.3 is working.

jennifer-shehane · 2020-08-17T08:08:17Z

Yeah, 5.0 should have some typescript improvements coming up, so this may be resolved there.

shaharkazaz · 2020-08-17T08:09:46Z

@jennifer-shehane Thanks for the quick response, do you happen to know what's the estimated release date on v5? so I'll know when to re-check this

jennifer-shehane · 2020-08-18T07:36:49Z

@shaharkazaz We are in the middle of releasing and blocked on this issue atm #8299 So whenever that is resolved.

stevensacks · 2020-08-20T12:13:26Z

I narrowed it down to this typescript config setting:

importHelpers: true

https://webhint.io/docs/user-guide/hints/hint-typescript-config/import-helpers/

Why is this important?
By enabling the importHelpers compiler option of TypeScript, the compiler will use the tslib package and reduce the size of the output. E.g.:

The docs for it calls out the tslib package by name, so the story checks out.

Now the question is, why would this conflict with Cypress?

You can reliably reproduce this by creating a brand new Create React App with TypeScript, installing Cypress, and then adding importHelpers: true to the tsconfig.json in the root of the project and then run cypress open.

npx create-react-app my-app --template typescript

alexbainter · 2020-08-20T21:21:30Z

@stevensacks check out #7503.

Maintainers might want to mark this as duplicate of #7503 and close (👋 @jennifer-shehane)

jennifer-shehane · 2020-08-21T04:30:44Z

5.0 was released, so if the above was related to #7503 - this issue should be fixed.

Can anyone confirm if their issue is resolved when updating to 5.0.0?

jennifer-shehane · 2020-08-21T05:38:33Z

Got a repro of this that occurs in both 4.12.1 and 5.0.0 from #8369:

Repro

$ npm install -g @angular/cli
$ ng new my-dream-app
$ cd my-dream-app
$ npm i --save-dev cypress@latest

Edit tsconfig.json to match below:

{
  "compilerOptions": {
    "importHelpers": true,
    "allowJs": true
  },
  "files": [],
  "references": [
    {
      "path": "./tsconfig.app.json"
    },
    {
      "path": "./tsconfig.spec.json"
    }
  ]
}

$ npx open cypress

stevensacks · 2020-08-21T23:57:49Z

@jennifer-shehane in my thread that you marked as a duplicate of this one and closed, I mentioned that I was using Cypress 5.

akashennn · 2020-08-25T06:45:59Z

Wrong command, try yarn cypress:open

hetunandu · 2020-10-10T04:56:02Z

Upgrading cypress to 5.3.0 seemed to solve this for us

grushetsky · 2020-10-12T17:24:11Z

Version 5.1.0 stopped emitting this error for us as well.

jennifer-shehane · 2021-03-18T19:56:31Z

Closing as resolved.

If you're experiencing a bug similar to this in Cypress, please open a new issue with a fully reproducible example that we can run. There may be a specific edge case with the issue that we need more detail to fix.

jennifer-shehane added the stage: needs information Not enough info to reproduce the issue label Aug 4, 2020

alexwhin closed this as completed Aug 4, 2020

alexwhin reopened this Aug 4, 2020

stevensacks mentioned this issue Aug 20, 2020

Create React App + Cypress 5.0 - cannot find module 'tslib' #8360

Closed

cypress-bot bot added stage: awaiting response Potential fix was proposed; awaiting response and removed stage: needs information Not enough info to reproduce the issue labels Aug 21, 2020

jennifer-shehane mentioned this issue Aug 21, 2020

Cypress cannot start with allowJs and target "es5" #8369

Closed

cypress-bot bot added stage: needs investigating Someone from Cypress needs to look at this and removed stage: awaiting response Potential fix was proposed; awaiting response labels Aug 21, 2020

jennifer-shehane added type: bug topic: typescript internal-priority labels Aug 21, 2020

jennifer-shehane removed the internal-priority label Mar 18, 2021

jennifer-shehane closed this as completed Mar 18, 2021

jennifer-shehane removed the stage: needs investigating Someone from Cypress needs to look at this label Mar 18, 2021

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Cannot find module 'tslib' on fresh installation #8162

Cannot find module 'tslib' on fresh installation #8162

alexwhin commented Aug 3, 2020 •

edited by sync-by-unito bot

jennifer-shehane commented Aug 4, 2020

hetunandu commented Aug 4, 2020 •

edited

alexbainter commented Aug 7, 2020

shaharkazaz commented Aug 17, 2020 •

edited

jennifer-shehane commented Aug 17, 2020

shaharkazaz commented Aug 17, 2020

jennifer-shehane commented Aug 18, 2020

stevensacks commented Aug 20, 2020 •

edited

alexbainter commented Aug 20, 2020

jennifer-shehane commented Aug 21, 2020

jennifer-shehane commented Aug 21, 2020

stevensacks commented Aug 21, 2020

akashennn commented Aug 25, 2020

hetunandu commented Oct 10, 2020

grushetsky commented Oct 12, 2020

jennifer-shehane commented Mar 18, 2021

Cannot find module 'tslib' on fresh installation #8162

Cannot find module 'tslib' on fresh installation #8162

Comments

alexwhin commented Aug 3, 2020 • edited by sync-by-unito bot

Current behavior:

Desired behavior:

Test code to reproduce

Versions

jennifer-shehane commented Aug 4, 2020

hetunandu commented Aug 4, 2020 • edited

alexbainter commented Aug 7, 2020

shaharkazaz commented Aug 17, 2020 • edited

jennifer-shehane commented Aug 17, 2020

shaharkazaz commented Aug 17, 2020

jennifer-shehane commented Aug 18, 2020

stevensacks commented Aug 20, 2020 • edited

alexbainter commented Aug 20, 2020

jennifer-shehane commented Aug 21, 2020

jennifer-shehane commented Aug 21, 2020

Repro

stevensacks commented Aug 21, 2020

akashennn commented Aug 25, 2020

hetunandu commented Oct 10, 2020

grushetsky commented Oct 12, 2020

jennifer-shehane commented Mar 18, 2021

alexwhin commented Aug 3, 2020 •

edited by sync-by-unito bot

hetunandu commented Aug 4, 2020 •

edited

shaharkazaz commented Aug 17, 2020 •

edited

stevensacks commented Aug 20, 2020 •

edited