keep getting Fatal error: Cannot read property 'replace' of undefined

[maqboolkhan]

Every time i run grunt-open task i keep getting this

 Fatal error: Cannot read property 'replace' of undefined

my task is so simple

    open: {
        path: 'http://localhost:3000',
        app: 'Firefox'
    },

kindly help

[geneh]

It's probably too late but try using the following instead:

open: {
   dev: {
        path: 'http://localhost:3000',
        app: 'Firefox'
   }
},

[vikasgupta001]

@geneh I have tried it, Nothing changed.

[Uko]

👍