MyNote | 本项目已废弃，笔记收藏整理参考： - This is my note in my coding life | Object-Relational Mapping library

In your thunk, you are manually handling the error. There is no way that any other code after that could know that something went wrong.

You have three options here:

• do not try..catch in your createAsyncThunk call. The error will be cleaned up from non-standard fields and end up in action.error of the rejected action
• manually throw something. The error will be cleaned up from non-standard fields and end up in action.error of the rejected action
• manually return thunkApi.rejectWithValue(yourError). The error will not be cleaned up and land in action.payload of the rejected action.

What you are doing now (handling the error and returning nothing) is essentially equal to doing return undefined in your function - which will end up as a fulfilled action with undefined as payload.

I found a way to achive what i wished to do.

I saved my Text-widgets in a list. And then fetched the index from the tabs and got that index from my list. Eg:

Please review your code in your addNotes method.

Seems like you have inserted data twice:

It seems you have mixed up which version of react-bootstrap you are using. The Accordion component API changed between v1 (Bootstrap 4.6) and v2 (Bootstrap 5.1).

Here with react-bootstrap v1.6.4 your code works without issue.

V1 Accordion API

This version has the Accordion, Accordion.Toggle, and Accordion.Collapse components.

V2 Accordion API

The v2 version has a few more options with Accordion, Accordion.Item, Accordion.Header, Accordion.Body, Accordion.Button, and Accordion.Collapse.

I suggest sticking to v1.6.4 and keeping your existing code working. If you want, or need, to upgrade then it's a bit unclear what immediate component changes you'll need to have a similarly working UI/UX, though I suspect the new accordion components will replace some of the card components currently used.

You can use either named or default export of the notes though, just don't use the module.exports.

You are getting the following error:

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'com.google.firebase.firestore.CollectionReference com.google.firebase.firestore.FirebaseFirestore.collection(java.lang.String)' on a null object reference

Because you are trying to use the firestore object before it is initialized. To solve this Exception, please move the following line of code:

I think it's because of the way you are declaring the variable, since you are declaring it as a direct function, you can try the following:

Check the example below that i have created based on the code you provided.

the problem is in your controller replace this

Error is in your Adapter Class. In the MyViewHolder class comment this line