# Error when start kibana after upgrade

**URL:** <https://discuss.elastic.co/t/error-when-start-kibana-after-upgrade/160326>\
**Category:** Kibana\
**Created:** [December 11, 2018, 9:08am UTC](https://discuss.elastic.co/t/error-when-start-kibana-after-upgrade/160326 "2018-12-11T09:08:42Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![1862347ba9566e72a47d](https://avatars.discourse-cdn.com/v4/letter/1/cdc98d/32.png) [@1862347ba9566e72a47d](https://discuss.elastic.co/u/1862347ba9566e72a47d)\
**Post date:** [December 11, 2018, 9:08am UTC](https://discuss.elastic.co/t/error-when-start-kibana-after-upgrade/160326/1 "2018-12-11T09:08:42Z")

</div>

After upgrade cluster is 6.4.2 to 6.5.2, when start kibana got error

```
[BABEL] Note: The code generator has deoptimised the styling of "/usr/share/kibana/node_modules/x-pack/plugins/canvas/canvas_plugin/types/all.js" as it exceeds the max of "500KB".
FATAL Error: Request Timeout after 30000ms

```

How fix it?

---

<div class="post-metadata">

**Author:** ![bhavyarm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bhavyarm/32/22392_2.png) [@bhavyarm](https://discuss.elastic.co/u/bhavyarm)\
**Post date:** [December 12, 2018, 9:51pm UTC](https://discuss.elastic.co/t/error-when-start-kibana-after-upgrade/160326/2 "2018-12-12T21:51:21Z")

</div>

Hello,

We have a possible bug here:

> <https://github.com/elastic/kibana/pull/23757>

I am also tagging a canvas team member to see if they have any additional insights. Thanks  
@Catherine_Liu

Thanks,  
Bhavya

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 9, 2019, 9:51pm UTC](https://discuss.elastic.co/t/error-when-start-kibana-after-upgrade/160326/3 "2019-01-09T21:51:28Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.