question-mark
Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Cannot find module 'tslib' on fresh installation

See original GitHub issue

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)

image

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

Issue Analytics

  • State:closed
  • Created 3 years ago
  • Reactions:7
  • Comments:16 (6 by maintainers)

github_iconTop GitHub Comments

1reaction
jennifer-shehanecommented, Aug 18, 2020

@shaharkazaz We are in the middle of releasing and blocked on this issue atm https://github.com/cypress-io/cypress/issues/8299 So whenever that is resolved.

0reactions
jennifer-shehanecommented, Mar 18, 2021

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.

Read more comments on GitHub >

github_iconTop Results From Across the Web

Cannot find module "tslib" - angular - Stack Overflow
Show activity on this post. I was using a typescript module I built in a javascript project. This error occurred because I had...
Read more >
tslib - npm
This is a runtime library for TypeScript that contains all of the TypeScript helper functions. This library is primarily used by the -- ......
Read more >
Uncaught Error: Cannot find module "tslib" when update to 3.9.2
I uninstalled angular/cli and install it again. update npm; remove node_module folder; npm install. Now, It is working. :wink: 1 Like.
Read more >
Error when trying to update to Forge CLI 1.2.0
Hi, when I try to update to Forge CLI 1.2.0 I get the following error npm ERR! code 1 npm ... Error: Cannot...
Read more >
How to fix error TS7016: Could not find a declaration file for ...
Try `npm install @types/XYZ` if it exists or add a new declaration (.d. · declare module 'XYZ';. Lastly, you also need to add...
Read more >

github_iconTop Related Medium Post

No results found

github_iconTop Related StackOverflow Question

No results found

github_iconTroubleshoot Live Code

Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start Free

github_iconTop Related Reddit Thread

No results found

github_iconTop Related Hackernoon Post

No results found

github_iconTop Related Tweet

No results found

github_iconTop Related Dev.to Post

No results found

github_iconTop Related Hashnode Post

No results found