# Ttn app missing after upgrade Node.js

**URL:** <https://discourse.nodered.org/t/ttn-app-missing-after-upgrade-node-js/29125>\
**Category:** General\
**Created:** [28 June 2020 20:11 UTC](https://discourse.nodered.org/t/ttn-app-missing-after-upgrade-node-js/29125 "2020-06-28T20:11:50Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Hunter](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hunter/32/60045_2.png) [@Hunter](https://discourse.nodered.org/u/Hunter)\
**Post date:** [28 June 2020 20:11 UTC](https://discourse.nodered.org/t/ttn-app-missing-after-upgrade-node-js/29125/1 "2020-06-28T20:11:51Z")

</div>

Hello,

We just upgraded our Node.js from v12 to v14.  
NodeRED version is 1.0.4

After the upgrade we get:

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/9/2/92d16c80a768eabaa1ec44ec2d948aa801686f96.png)

The node node-red-contrib-ttn shows :

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/3/d/3d2d1c9173e3fc266f93162c22dfab0ecab3e790.png)

Doesn't seem to be able to be either removed or upgraded.

Any suggestions maybe on this issue?

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**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [28 June 2020 20:16 UTC](https://discourse.nodered.org/t/ttn-app-missing-after-upgrade-node-js/29125/2 "2020-06-28T20:16:35Z")

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it may need rebuilding ...

```auto
cd ~/.node-red
npm rebuild

```

or it just may not be supported under node 14

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<div class="post-metadata">

**Author:** ![Hunter](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hunter/32/60045_2.png) [@Hunter](https://discourse.nodered.org/u/Hunter)\
**Post date:** [29 June 2020 16:32 UTC](https://discourse.nodered.org/t/ttn-app-missing-after-upgrade-node-js/29125/3 "2020-06-29T16:32:29Z")

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Already tried a rebuild, no luck. So it's probably not supported ☹

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<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [29 June 2020 16:44 UTC](https://discourse.nodered.org/t/ttn-app-missing-after-upgrade-node-js/29125/4 "2020-06-29T16:44:35Z")

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What do you see if you run, in the .node-red folder  
`npm install node-red-contrib-ttn`

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<div class="post-metadata">

**Author:** ![Hunter](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hunter/32/60045_2.png) [@Hunter](https://discourse.nodered.org/u/Hunter)\
**Post date:** [29 June 2020 19:14 UTC](https://discourse.nodered.org/t/ttn-app-missing-after-upgrade-node-js/29125/5 "2020-06-29T19:14:20Z")

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Ok, we performed the rebuild from the NodeRED subdirectory, in stead of the root. Now all seems to be working fine! 🙂

Thanks all!

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [13 July 2020 19:14 UTC](https://discourse.nodered.org/t/ttn-app-missing-after-upgrade-node-js/29125/6 "2020-07-13T19:14:22Z")

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