# Broke node-red - can I fix it somehow?

**URL:** <https://discourse.nodered.org/t/broke-node-red-can-i-fix-it-somehow/5574>\
**Category:** General\
**Created:** [7 December 2018 22:44 UTC](https://discourse.nodered.org/t/broke-node-red-can-i-fix-it-somehow/5574 "2018-12-07T22:44:15Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Samuel](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@Samuel](https://discourse.nodered.org/u/Samuel)\
**Post date:** [7 December 2018 22:44 UTC](https://discourse.nodered.org/t/broke-node-red-can-i-fix-it-somehow/5574/1 "2018-12-07T22:44:15Z")

</div>

Guys, I have broke my node-red. I have installed few new packages and it won't start. this is full log from startup. I have already reinstalled NR, that didn't help. Any ideas? Thank you

```auto
    Welcome to Node-RED
===================
7 Dec 22:35:05 - [info] Node-RED version: v0.19.5
7 Dec 22:35:05 - [info] Node.js version: v8.12.0
7 Dec 22:35:05 - [info] Linux 4.14.71-v7+ arm LE
7 Dec 22:35:06 - [info] Loading palette nodes
7 Dec 22:35:13 - [info] Dashboard version 2.11.0 started at /ui
7 Dec 22:35:14 - [warn] ------------------------------------------------------
7 Dec 22:35:14 - [warn] [node-red-contrib-mi-devices/xiaomi-yeelight] Error: /home/bednarz/.node-red/node_modules/node-red-contrib-mi-devices/dist/nodes/yeelight/index.html does not exist
7 Dec 22:35:14 - [warn] [node-red-contrib-mydash/mydash] TypeError: "file" argument must be a non-empty string (line:9)
7 Dec 22:35:14 - [warn] [node-red-contrib-xiaomi-devices/xiaomi-ht] Type already registered
7 Dec 22:35:14 - [warn] [node-red-contrib-xiaomi-devices/xiaomi-magnet] Type already registered
7 Dec 22:35:14 - [warn] [node-red-contrib-xiaomi-devices/xiaomi-motion] Type already registered
7 Dec 22:35:14 - [warn] [node-red-contrib-xiaomi-devices/xiaomi-switch] Type already registered
7 Dec 22:35:14 - [warn] [node-red-contrib-xiaomi-devices/xiaomi-socket] Type already registered
7 Dec 22:35:14 - [warn] [node-red-contrib-xiaomi-devices/xiaomi-socket-wifi] Type already registered
7 Dec 22:35:14 - [warn] [node-red-contrib-xiaomi-devices/xiaomi-configurator] Type already registered
7 Dec 22:35:14 - [warn] ------------------------------------------------------
7 Dec 22:35:14 - [info] Settings file : /home/bednarz/.node-red/settings.js
7 Dec 22:35:14 - [info] Context store : 'default' [module=memory]
7 Dec 22:35:14 - [info] User directory : /home/bednarz/.node-red
7 Dec 22:35:14 - [warn] Projects disabled : editorTheme.projects.enabled=false
7 Dec 22:35:14 - [info] Flows file : /home/bednarz/.node-red/flows_raspberrypi.json
7 Dec 22:35:14 - [info] Server now running at http://127.0.0.1:1880/
Detected device with identifier 130275447 types Set { 'placeholder', 'miio' } model undefined
Detected device with identifier 53865017 types Set { 'placeholder', 'miio' } model undefined
7 Dec 22:35:14 - [warn]
---------------------------------------------------------------------
Your flow credentials file is encrypted using a system-generated key.
If the system-generated key is lost for any reason, your credentials
file will not be recoverable, you will have to delete it and re-enter
your credentials.
You should set your own key using the 'credentialSecret' option in
your settings file. Node-RED will then re-encrypt your credentials
file using your chosen key the next time you deploy a change.
---------------------------------------------------------------------
7 Dec 22:35:14 - [info] Waiting for missing types to be registered:
7 Dec 22:35:14 - [info] - powershell
Detected device with identifier 130275356 types Set { 'placeholder', 'miio' } model undefined
Detected device with identifier 57595030 types Set { 'placeholder', 'miio' } model undefined
Detected device with identifier 87149866 types Set { 'placeholder', 'miio' } model undefined
Detected device with identifier 78253705 types Set { 'placeholder', 'miio' } model undefined
Detected device with identifier 57795237 types Set { 'placeholder', 'miio' } model undefined
Detected device with identifier 87148356 types Set { 'placeholder', 'miio' } model undefined

```

---

<div class="post-metadata">

**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [7 December 2018 22:52 UTC](https://discourse.nodered.org/t/broke-node-red-can-i-fix-it-somehow/5574/2 "2018-12-07T22:52:53Z")

</div>

Hi @Samuel, the main issue is your flows use a node of type `powershell` but you do not have a module installed that provides that node.

You can either install the missing module and restart node-red, or delete any instances of the powershell node from your flow.

To do the former, go into the directory `/home/bednarz/.node-red` and run: `npm install node-red-contrib-powershell`. Then restart Node-RED.

Otherwise, open up the NR editor, find an `unknown` nodes and delete them, then hit deploy.

---

<div class="post-metadata">

**Author:** ![Samuel](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@Samuel](https://discourse.nodered.org/u/Samuel)\
**Post date:** [7 December 2018 22:57 UTC](https://discourse.nodered.org/t/broke-node-red-can-i-fix-it-somehow/5574/3 "2018-12-07T22:57:02Z")

</div>

thank you for quick response. I have just installed powershell module and now startup process loops with the following error:

> (node:3282) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 listening listeners added. Use emitter.setMaxListeners() to increase limit  
> 7 Dec 22:52:10 - [red] Uncaught Exception:  
> 7 Dec 22:52:10 - Error: spawn powershell ENOENT  
> at Process.ChildProcess.\_handle.onexit (internal/child\_process.js:190:19)  
> at onErrorNT (internal/child\_process.js:362:16)  
> n

Can I somehow remove all powershell related nodes/modules without GUI?

---

<div class="post-metadata">

**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [7 December 2018 23:14 UTC](https://discourse.nodered.org/t/broke-node-red-can-i-fix-it-somehow/5574/4 "2018-12-07T23:14:53Z")

</div>

To remove the powershell module run `npm remove node-red-contrib-powershell` in `/home/bednarz/.node-red`

Then restart Node-RED. You'll still get the 'flows stopped' error, but you should be able to load the editor. Then go through and find + delete any 'unknown' nodes.

---

<div class="post-metadata">

**Author:** ![Samuel](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@Samuel](https://discourse.nodered.org/u/Samuel)\
**Post date:** [7 December 2018 23:16 UTC](https://discourse.nodered.org/t/broke-node-red-can-i-fix-it-somehow/5574/5 "2018-12-07T23:16:41Z")

</div>

great - thank you - I will report back.

---

<div class="post-metadata">

**Author:** ![Samuel](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@Samuel](https://discourse.nodered.org/u/Samuel)\
**Post date:** [7 December 2018 23:19 UTC](https://discourse.nodered.org/t/broke-node-red-can-i-fix-it-somehow/5574/6 "2018-12-07T23:19:57Z")

</div>

It worked! thank you very much for that!