# How to handle ember errors?
**URL:** https://discuss.emberjs.com/t/how-to-handle-ember-errors/18320
**Category:** Questions
**Created:** [October 30, 2020, 4:26pm UTC](https://discuss.emberjs.com/t/how-to-handle-ember-errors/18320 "2020-10-30T16:26:10Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@dimas09](https://discuss.emberjs.com/u/dimas09)
#### Post date: [October 30, 2020, 4:26pm UTC](https://discuss.emberjs.com/t/how-to-handle-ember-errors/18320/1 "2020-10-30T16:26:10Z")
I’ve added the next code
```auto
Ember.onerror = function (error) {
sendError(error);
}
```
Yes, I get errors here but not all. For example, I can’t handle the next error: `Error in application route Error: Assertion Failed: You made a 'findAll' request for 'mymodel' records, but the adapter's response did not have any data`
I tried to add into `application` route:
```auto
actions: {
error(error, transition) {
sendError(error);
}
}
```
But It doesn’t help.
---
### Author:  [@dknutsen](https://discuss.emberjs.com/u/dknutsen)
#### Post date: [October 30, 2020, 7:26pm UTC](https://discuss.emberjs.com/t/how-to-handle-ember-errors/18320/2 "2020-10-30T19:26:52Z")
> [@dimas09](#):
>
> ```auto
> Ember.onerror = function (error) {
> sendError(error);
> }
>
> ```
Where is this code in your app? You should probably have it in an initializer e.g.:
```auto
// app/initializers/error-handling.js
import Ember from 'ember';
function initialize(/* application */) {
const onErrorSuper = Ember.onerror || function(e) {
throw e;
};
// your custom handler here, this is just an example
Ember.onerror = function(e) {
if (e instanceof AppExplosion) {
// Silence app explosions, they are not important.
} else {
onErrorSuper(e);
}
};
}
export default {
name: 'error-handling',
initialize
};
```
---
### Author:  [@dimas09](https://discuss.emberjs.com/u/dimas09)
#### Post date: [November 1, 2020, 5:16pm UTC](https://discuss.emberjs.com/t/how-to-handle-ember-errors/18320/3 "2020-11-01T17:16:26Z")
Yes, I tried to add `onerror` handler in `instance-initializers`
---
### Author:  [@dimas09](https://discuss.emberjs.com/u/dimas09)
#### Post date: [November 2, 2020, 10:18am UTC](https://discuss.emberjs.com/t/how-to-handle-ember-errors/18320/4 "2020-11-02T10:18:41Z")
Seems, `onerror` doesn’t catch errors like `Error in application route Error:.......`
---
### Author:  [@dknutsen](https://discuss.emberjs.com/u/dknutsen)
#### Post date: [November 2, 2020, 3:19pm UTC](https://discuss.emberjs.com/t/how-to-handle-ember-errors/18320/5 "2020-11-02T15:19:42Z")
Hmmmm I feel like it still should. Have you tried a regular initializer instead of an instance initializer? That’s the only way I’ve done this before.