Cannot read properties of null (reading '$options') at getValue

[Charlton Wilbur]

I'm running into a consistent error message and I cannot figure out what I'm doing wrong and I'd appreciate a shove in the right direction. I'll attach the relevant code as well,

The key behavior is that EJ2 components that are children of my root component, and only my root component, work correctly,  The others fail in the post-mount hook with the error and stack trace:

Cannot read properties of null (reading '$options') at getValue (location) at Proxy.created (location) ... at callWithErrorHandling (location) at callWithAsyncErrorHandling   (location)   at callWithAsyncErrorHandling   (location) at callHook (location) at applyOptions (location) at finishComponentSetup (location) at setupStatefulComponent (location) at setupComponent (location) 

 (I've left out the error locations as they're specific to my build.) 

Because of the mention of $options I at first thought the components might not be compatible with the Composition API, though it seemed like that would be documented somewhere if that were the case. So I began investigating there. 

I first duplicated the code in the checkbox example in the demos exactly, naming it CheckBox.vue, and using it as the root component, and it worked as expected. I then rewrote it to use the Composition API, and I include that version here. It worked as expected too. This puzzled me.

Then I wrote a minimal root component, which included my CheckBox,vue.  In that context it failed consistently with the "cannot read properties of null" error message indicated above.  That puzzled me more.

I've attached a zip file with the two components, the full stack trace, and a browser console warning that appears to be related.  I'd appreciate any shove in the right direction. 

Attachment: code_a4a87888.zip

[Melvin Baker]

@tunnel rush,  this problem sounds be the same with yours. Can you give him some your experience?

[Keerthikaran Venkatachalam]

Hi Melvin Baker,

We have checked your reported query, and we are unable to replicate the issue on our end. We have prepared a sample based on your requirements. It is working fine. I have attached the video demonstration and sample for reference.

For further validation, could you please share the issue's replicable working sample or replicate the issue in our sample with replication steps and a video demonstration? Based on that, we will check and provide you with a better solution quickly.

Please let us know if you need any further assistance on this.

Regards,

KeerthiKaran K V

Attachment: CheckBoxSample_6eaf5d03.zip

[Jenner Kim]

I hope you keep giving the community great material

[Eng Angela]

It sounds like you're encountering a common issue with Vue.js where a component is trying to access properties of a parent or root component that are not available at the time of execution. Here are a few suggestions to help troubleshoot the problem:

1. Check Component Registration: Ensure that all components are properly registered in your root component. If a child component is not registered, it may lead to null references.

2. Lifecycle Hooks: Review the lifecycle hooks you're using. If you're trying to access $options or other properties in the created or mounted hooks, make sure the component is fully initialized before accessing them.

3. Props and Data: Confirm that any props or data being passed to the child components are correctly initialized. If a prop is expected but not provided, it could lead to null values.

4. Composition API Compatibility: If you're mixing Options API and Composition API, ensure that you're correctly using setup() for your Composition API components.

5. Console Warnings: Pay attention to any console warnings or errors related to Vue's reactivity system, as they can provide clues about what might be going wrong.

@ chill guy clicker