Cannot use 'in' operator to search for '__eventList' in undefined

[Fatih Kupelikilinc]

ej2-base.umd.min.js?85d3:10 Uncaught TypeError: Cannot use 'in' operator to search for '__eventList' in undefined

    at Function.t.addOrGetEventData (ej2-base.umd.min.js?85d3:10)

    at Function.t.remove (ej2-base.umd.min.js?85d3:10)

    at e.o.unWireEvents (ej2-charts.umd.min.js?a318:10)

    at e.o.destroy (ej2-charts.umd.min.js?a318:10)

    at e.o.componentWillUnmount (ej2-react-base.umd.min.js?badd:formatted:114)

    at callComponentWillUnmountWithTimer (react-dom.development.js?61bb:15799)

    at HTMLUnknownElement.callCallback (react-dom.development.js?61bb:149)

    at Object.invokeGuardedCallbackDev (react-dom.development.js?61bb:199)

    at invokeGuardedCallback (react-dom.development.js?61bb:256)

    at safelyCallComponentWillUnmount (react-dom.development.js?61bb:15806)

I get this error while using with webpack 4.

[Fatih Kupelikilinc]

ej2-base.umd.min.js?85d3:10 Uncaught TypeError: Cannot use 'in' operator to search for '__eventList' in undefined

    at Function.t.addOrGetEventData (ej2-base.umd.min.js?85d3:10)

    at Function.t.remove (ej2-base.umd.min.js?85d3:10)

    at e.o.unWireEvents (ej2-charts.umd.min.js?a318:10)

    at e.o.destroy (ej2-charts.umd.min.js?a318:10)

    at e.o.componentWillUnmount (ej2-react-base.umd.min.js?badd:formatted:114)

    at callComponentWillUnmountWithTimer (react-dom.development.js?61bb:15799)

    at HTMLUnknownElement.callCallback (react-dom.development.js?61bb:149)

    at Object.invokeGuardedCallbackDev (react-dom.development.js?61bb:199)

    at invokeGuardedCallback (react-dom.development.js?61bb:256)

    at safelyCallComponentWillUnmount (react-dom.development.js?61bb:15806)

I get this error while using with webpack 4.

Any support on this on? 

[Kalaimathi Chellaiah]

Hi Fatih, 

 

Greetings from Syncfusion. 

 

We have analyzed your query. We have prepared a quickstart sample with webpack 4 in that chart has been rendered properly without any error which can be downloaded from the following location. 

 

Sample: http://www.syncfusion.com/downloads/support/directtrac/general/ze/package208607052.zip  

 

To run the sample, kindly follow the below UG link. 

https://ej2.syncfusion.com/react/documentation/chart/getting-started  

 

Package Screenshot: 

 

 

Since, we were not aware of your exact scenario which the issue was reproduced. We suspect that you have done some customization in your application, so please revert us back with following details which was more helpful for further analysis and provide you the solution sooner. 

 

• Try to reproduce the reported scenario with the above sample and revert us.
• Provide your sample with replication steps.
• provide your code snippet

 

Regards, 

Kalai. 

 

[Slavoljub]

Hi Kalai

I faced same issue like Faith

This is the current issue

http://prntscr.com/njzagc

I'm getting this issue when switching components

First component is Simple Table component

Second Component is PivotViewComponent

This is the code snippet of PivotViewComponent

http://prntscr.com/njzaxz

Can you help me fix it ?

Thanks,

Slavoljub

[Jagadeesan Pichaimuthu]

Hi Slavoljub, 

  

We are unable to understand the exact problem with the provided information. So, we have prepared simple PivotView sample. 

 

Sample: http://www.syncfusion.com/downloads/support/forum/142439/ze/sample-299747607 

  

If still the problem exists, kindly reproduce the problem in the provided sample and revert us (or) send your sample that replicating the problem. This would be a very helpful for us to investigate the reported problem at our end and provide the solution at earliest. 

  

Regards, 

Jagadeesan