Ionic Cannot read property 'hasOwnProperty' of undefined

Asked Nov 07 '16 at 21:55

Active Jan 13 '17 at 21:43

Viewed 1,370 times

I'm using Ionic framework. I upgraded to a later version of the ionic cli and receive this error while running ionic serve.

How do I fix the issue to allow the project to run with ionic serve or ionic build again?

There was an error serving your Ionic application: TypeError: Cannot read property 'hasOwnProperty' of undefined
    at C:\Users\***\AppData\Roaming\npm\node_modules\ionic\lib\utils\npmScripts.js:16:31
    at _fulfilled (C:\Users\***\node_modules\q\q.js:834:54)
    at self.promiseDispatch.done (C:\Users\***\node_modules\q\q.js:863:30)
    at Promise.promise.promiseDispatch (C:\Users\***\node_modules\q\q.js:796:13)
    at C:\Users\***\node_modules\q\q.js:604:44
    at runSingle (C:\Users\***\node_modules\q\q.js:137:13)
    at flush (C:\Users\***\node_modules\q\q.js:125:13)
    at _combinedTickCallback (internal/process/next_tick.js:67:7)
    at process._tickCallback (internal/process/next_tick.js:98:9)

edited Jan 13 '17 at 21:43

andrewoodleyjr

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asked Nov 07 '16 at 21:55

sezerural

try logic like this: if typeof VARIABLE !=="undefined" && VARIABLE.hasOwnProperty("field") this will get you going – Coldstar Nov 09 '16 at 17:59
Please visit this link - I will provide steps below https://forum.ionicframework.com/t/cannot-read-property-hasownproperty-of-undefined/68965/7?u=andrewoodleyjr – andrewoodleyjr Jan 13 '17 at 20:07
Step 1 - Create an empty package.json file {} in the root you can add stuff here later. – andrewoodleyjr Jan 13 '17 at 20:09
Step 2 - Move your index.html file to the root within www/ (this should not be in templates/) – andrewoodleyjr Jan 13 '17 at 20:10
Step 3 - Run the following commands `npm install; npm update;` – andrewoodleyjr Jan 13 '17 at 20:11
Step 4 - ionic serve - this should work now! – andrewoodleyjr Jan 13 '17 at 20:11

Ionic Cannot read property 'hasOwnProperty' of undefined

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