Cannot find unclaimed instance for spec

Current behavior:

I got this on the CL. Run do NOT get recorded This run will not be recorded. On the dashboard the run will be labeled as timeout.

Warning: We encountered an error talking to our servers.

This error will not alter the exit code.

StatusCodeError: 400

{
  "message": "Cannot find unclaimed instance for spec: cypress\\integration\\dev-tests\\tests_writing_off.spec.js"
}

Desired behavior:

The run to get recorded

Test code to reproduce

cypress run --record thrugth npm run ‘custom script’. With any sets of tests.

Versions

Version 4.12.1 Windows 10 Electron 80

[jennifer-shehane]

Our engineering team has released a fix for this issue - of seeing the Cannot find unclaimed instance for spec error when running in Windows OS’s. This fix should be immediate and not require a new version of Cypress.

Please comment here or open a new issue if you continue to see this issue on any new runs that are recorded to the Dashboard.

[abhijaykumar]

I’m still facing this issue in the latest version of cypress (5.0.0) on Windows. Here is the full log with debug enabled if it helps:

2020-08-21T07:43:14.970Z cypress:server:run formatting Node version. { version: '12.14.1', path: undefined }
  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
  │ Cypress:    5.0.0                                                                              │
  │ Browser:    Chrome 84 (headless)                                                               │
  │ Specs:      1 found (my-app\my_tests.spec.js)                                   │
  │ Searched:   cypress\integration\my-app\my_tests.spec.js                         │
  │ Params:     Tag: false, Group: false, Parallel: false                                          │
  │ Run URL:    https://dashboard.cypress.io/projects/td8e9s/runs/11                               │
  └────────────────────────────────────────────────────────────────────────────────────────────────┘

2020-08-21T07:43:14.970Z cypress:server:record before spec run { spec: { name: 'my-app\\my_tests.spec.js', relative: 'cypress\\integration\\my-app\\my_tests.spec.js', absolute: 'C:/JenkinsHome/workspace/PolicyCenter10Jenkins_master/cypress/integration/my-app/my_tests.spec.js', specType: 'integration' } }
2020-08-21T07:43:14.985Z cypress:server:api request to url: POST https://api.cypress.io/runs/9583660c-c890-44d4-8fa8-26c68c5335ce/instances with params: {"body":{"spec":"cypress\\integration\\my-app\\my_tests.spec.js","groupId":"win32-Chrome-84-93c69e07ce","machineId":"c224efa7-9b3a-4ddf-8c61-11f89e38f2fb","platform":{"osCpus":[{"model":"Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz","speed":2300,"times":{"user":5851593,"nice":0,"sys":2067515,"idle":3769855093,"irq":149953}},{"model":"Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz","speed":2300,"times":{"user":8712859,"nice":0,"sys":1822750,"idle":3767238375,"irq":14343}},{"model":"Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz","speed":2300,"times":{"user":9124109,"nice":0,"sys":2004375,"idle":3766645500,"irq":13875}},{"model":"Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz","speed":2300,"times":{"user":7558437,"nice":0,"sys":1720734,"idle":3768494812,"irq":13156}},{"model":"Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz","speed":2300,"times":{"user":6291125,"nice":0,"sys":1436562,"idle":3770046296,"irq":9562}},{"model":"Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz","speed":2300,"times":{"user":6841437,"nice":0,"sys":2701609,"idle":3768230937,"irq":14765}},{"model":"Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz","speed":2300,"times":{"user":6250609,"nice":0,"sys":1780515,"idle":3769742843,"irq":11375}},{"model":"Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz","speed":2300,"times":{"user":5728078,"nice":0,"sys":1528203,"idle":3770517687,"irq":13453}}],"osName":"win32","osMemory":{"free":19789500416,"total":34359328768},"osVersion":"6.3.9600","browserName":"Chrome","browserVersion":"84.0.4147.135"}},"headers":{"x-route-version":"5","x-os-name":"win32","x-cypress-version":"5.0.0"}} and token: undefined
2020-08-21T07:43:14.985Z cypress:network:agent addRequest called { isHttps: true, href: 'https://api.cypress.io/runs/9583660c-c890-44d4-8fa8-26c68c5335ce/instances' }
2020-08-21T07:43:14.985Z cypress:network:agent got family { family: 4, href: 'https://api.cypress.io/runs/9583660c-c890-44d4-8fa8-26c68c5335ce/instances' }
2020-08-21T07:43:15.079Z cypress:server:record failed creating instance { stack: 'StatusCodeError: 400 - {"message":"Cannot find unclaimed instance for spec: cypress\\\\integration\\\\my-app\\\\my_tests.spec.js"}\n' + '    at new StatusCodeError (C:\\Users\\Administrator\\AppData\\Local\\Cypress\\Cache\\5.0.0\\Cypress\\resources\\app\\packages\\server\\node_modules\\request-promise-core\\lib\\errors.js:32:15)\n' + '    at Request.plumbing.callback (C:\\Users\\Administrator\\AppData\\Local\\Cypress\\Cache\\5.0.0\\Cypress\\resources\\app\\packages\\server\\node_modules\\request-promise-core\\lib\\plumbing.js:104:33)\n' + '    at Request.RP$callback [as _callback] (C:\\Users\\Administrator\\AppData\\Local\\Cypress\\Cache\\5.0.0\\Cypress\\resources\\app\\packages\\server\\node_modules\\request-promise-core\\lib\\plumbing.js:46:31)\n' + '    at Request.self.callback (C:\\Users\\Administrator\\AppData\\Local\\Cypress\\Cache\\5.0.0\\Cypress\\resources\\app\\packages\\server\\node_modules\\@cypress\\request\\request.js:185:22)\n' + '    at Request.emit (events.js:223:5)\n' + '    at Request.<anonymous> (C:\\Users\\Administrator\\AppData\\Local\\Cypress\\Cache\\5.0.0\\Cypress\\resources\\app\\packages\\server\\node_modules\\@cypress\\request\\request.js:1156:10)\n' + '    at Request.emit (events.js:223:5)\n' + '    at IncomingMessage.<anonymous> (C:\\Users\\Administrator\\AppData\\Local\\Cypress\\Cache\\5.0.0\\Cypress\\resources\\app\\packages\\server\\node_modules\\@cypress\\request\\request.js:1078:12)\n' + '    at Object.onceWrapper (events.js:312:28)\n' + '    at IncomingMessage.emit (events.js:228:7)\n' + '    at endReadableNT (_stream_readable.js:1185:12)\n' + '    at processTicksAndRejections (internal/process/task_queues.js:81:21)\n' }
Warning: We encountered an error talking to our servers.

This run will not be recorded.

This error will not alter the exit code.

StatusCodeError: 400

{
  "message": "Cannot find unclaimed instance for spec: cypress\\integration\\my-app\\my_tests.spec.js"
}