quasar dev doesn't work

[Godfadatun]

So I have been going through a problem for starting up my code. Here is the error I currently get

`(node:6682) UnhandledPromiseRejectionWarning: Error: ENOENT: no such file or directory, open '/Users/danieladegoke/Desktop/r epos/vue/paylidateFrontEnd/paylidate/src/router/index.js'

• legacy-validations.js:104 legacyValidations
  [lib]/[quasar-cli]/lib/legacy-validations.js:104:16

• quasar-config.js:655 QuasarConfig.compile
  [lib]/[quasar-cli]/lib/quasar-config.js:655:5

• quasar-dev:156 goLive
  [lib]/[quasar-cli]/bin/quasar-dev:156:16

• task_queues.js:93 processTicksAndRejections
  internal/process/task_queues.js:93:5
  `

[rstoenescu]

What version of "@quasar/app" are you using? lib/legacy-validations.js does not exist in "@quasar/app" v2 or v3. It has been removed long time ago...