# Failed to start server ... registry.js:195:27

**URL:** <https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112>\
**Category:** General\
**Created:** [2 May 2023 16:24 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112 "2023-05-02T16:24:54Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 16:24 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/1 "2023-05-02T16:24:54Z")

</div>

Hi,  
i could not start my node-red server again. Getting the following error. Using node-red on windows. Hopefully anybody can help me. Is there a list or something where i can disable additional installed nodes ? Where are my flows saved? Maybe i can remove them to get the server starting again.  
[info] Loading palette nodes  
2 May 17:47:15 - [error] Failed to start server:  
2 May 17:47:15 - [error] TypeError: Cannot read properties of undefined (reading 'forEach')  
at Object.addModule (C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red\registry\lib\registry.js:195:27)  
at C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red\registry\lib\loader.js:153:34

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<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [2 May 2023 16:33 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/2 "2023-05-02T16:33:45Z")

</div>

Welcome the forums @steve1.

This is your first post.  
So when you say: `i could not start my node-red server again`

What do you mean "again" ? can you give us (a lot) more info, on what you have done leading upto this error?

- How are you starting Node RED
- Did you install any nodes before this error occurred
- Node Version
- Node RED version

Also, this  
`C:\Users\steve\AppData\Roaming\npm\node_modules\node-red\node_modules@node-red\registry\lib\loader.js`

seems incorrect, it should be (`node_modules\@node-red`, not `node_modules@node-red`), but then I dont use windows so maybe normal 🤷‍♂️

`C:\Users\steve\AppData\Roaming\npm\node_modules\node-red\node_modules\@node-red\registry\lib\loader.js`

if you can detail your setup, it may help us to understand what is going on.

---

<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 16:43 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/3 "2023-05-02T16:43:28Z")

</div>

I'm starting the server using the 'cmd'. Node-red was running for few weeks, today i worked on it, added also a new node (not sure how it was named, something with table ui or so) and got an error ..."is already installed" or similar, but was not. I went on to work on an other issue. By using 'deploy' the connection to the server was lost, i tried to restart it, but only got the error.  
[info] Node-RED version: v3.0.2  
2 May 17:47:13 - [info] Node.js version: v18.10.0  
2 May 17:47:13 - [info] Windows\_NT 10.0.19044 x64 LE  
2 May 17:47:15 - [info] Loading palette nodes  
2 May 17:47:15 - [error] Failed to start server:  
2 May 17:47:15 - [error] TypeError: Cannot read properties of undefined (reading 'forEach')  
at Object.addModule (C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red\registry\lib\registry.js:195:27)  
at C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red\registry\lib\loader.js:153:34  
It's 'C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules''@node-red\registry\lib\loader.js' on some reason after posting it's removing the '' from the post...

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<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 16:51 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/4 "2023-05-02T16:51:58Z")

</div>

Node-red was running for a few weeks. Today, I was working on it. I also installed new node, not sure if it was 'table ui' or something. I got an error similar to 'already installed' but wasn't. Ignored it and was working on an other issue. Lateron that day, server lost connection after 'deploy'. So I want to restart (using 'cmd'), but only got this error.  
\<2 May 17:47:13 - [info] Node-RED version: v3.0.2  
2 May 17:47:13 - [info] Node.js version: v18.10.0  
2 May 17:47:13 - [info] Windows\_NT 10.0.19044 x64 LE  
2 May 17:47:15 - [info] Loading palette nodes  
2 May 17:47:15 - [error] Failed to start server:  
2 May 17:47:15 - [error] TypeError: Cannot read properties of undefined (reading 'forEach')  
at Object.addModule (C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red\registry\lib\registry.js:195:27)  
at C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red\registry\lib\loader.js:153:34 /\>

---

<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [2 May 2023 17:20 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/5 "2023-05-02T17:20:01Z")

</div>

I'm not a core developer for Node RED - They are around of course, so I can only advise,  
" **what I would do**"

Re-install Node RED

```auto
npm install -g --unsafe-perm node-red

```

(or however you installed initially)

This won't remove any nodes you have, but back them up just in case, and re-install nodes that are missing via the palette menu.

I have never really seen an error of this nature

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<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 17:23 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/6 "2023-05-02T17:23:49Z")

</div>

Thx, tried the re-installed. Did not work, same error. 😰

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<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [2 May 2023 17:24 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/7 "2023-05-02T17:24:40Z")

</div>

what happens if you run Node RED with the argument **--safe**  
it could well be a node that is causing issues

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<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 17:26 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/8 "2023-05-02T17:26:19Z")

</div>

same error

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<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [2 May 2023 17:29 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/9 "2023-05-02T17:29:24Z")

</div>

> [@steve1](#):
>
> C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red

does this directory actually exist?

or does it exist as

`C:\Users\steve\AppData\Roaming\npm\node_modules\node-red\node_modules\@node-red`

---

<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 17:31 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/10 "2023-05-02T17:31:47Z")

</div>

> [@marcus-j-davies](#):
>
> C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red

This is correct, when c&p error msg into browser and posting it, the '' is removed. So this should not be the problem.

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<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [2 May 2023 17:33 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/11 "2023-05-02T17:33:58Z")

</div>

What does....

`C:\Users\steve\AppData\Roaming\npm\package.json` contain.

also do `npm list -g` - what does that show

EDIT:  
I should state, my knowledge is being stretched at this point (Mainly, with Windows) 😅

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<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 17:45 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/12 "2023-05-02T17:45:28Z")

</div>

used a debug insertion I currently found in the forum. Got the following error msg:

May 19:42:59 - [info] Node-RED version: v3.0.2  
2 May 19:42:59 - [info] Node.js version: v18.10.0  
2 May 19:42:59 - [info] Windows\_NT 10.0.19044 x64 LE  
2 May 19:43:01 - [info] Loading palette nodes  
Module: node-red-contrib-tabletojson  
Path: \Users\steve.node-red\node\_modules\node-red-contrib-tabletojson  
Set: version  
2 May 19:43:01 - [error] Failed to start server:  
2 May 19:43:01 - [error] TypeError: Cannot read properties of undefined (reading 'forEach')  
at Object.addModule (C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red\registry\lib\registry.js:202:27)  
at C:\Users\steve\AppData\Roaming\npm\node\_modules\node-red\node\_modules@node-red\registry\lib\loader.js:153:34

So maybe 'tabletojson' is not working. I'm trying to uninstall...  
Edit: used: npm uninstall node-red-contrib-tabletojson  
Got same error after starting the server...

---

<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [2 May 2023 17:53 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/13 "2023-05-02T17:53:04Z")

</div>

What does

`C:\Users\steve\AppData\Roaming\npm\package.json` contain?

---

<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 17:54 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/14 "2023-05-02T17:54:00Z")

</div>

package.json is not in that folder, but consists:

{  
"name": "node-red",  
"version": "3.0.2",  
"description": "Low-code programming for event-driven applications",  
"homepage": "[http://nodered.org](http://nodered.org)",  
"license": "Apache-2.0",  
"repository": {  
"type": "git",  
"url": "[GitHub - node-red/node-red: Low-code programming for event-driven applications](https://github.com/node-red/node-red.git)"  
},  
"main": "lib/red.js",  
"scripts": {  
"start": "node red.js"  
},  
"bin": {  
"node-red": "./red.js",  
"node-red-pi": "bin/node-red-pi"  
},  
"contributors": [  
{  
"name": "Nick O'Leary"  
},  
{  
"name": "Dave Conway-Jones"  
}  
],  
"keywords": [  
"editor",  
"messaging",  
"iot",  
"flow"  
],  
"dependencies": {  
"@node-red/editor-api": "3.0.2",  
"@node-red/runtime": "3.0.2",  
"@node-red/util": "3.0.2",  
"@node-red/nodes": "3.0.2",  
"basic-auth": "2.0.1",  
"bcryptjs": "2.4.3",  
"express": "4.18.1",  
"fs-extra": "10.1.0",  
"node-red-admin": "^3.0.0",  
"nopt": "5.0.0",  
"semver": "7.3.7"  
},  
"optionalDependencies": {  
"bcrypt": "5.0.1"  
},  
"engines": {  
"node": "\>=14"  
}  
}

This looks maybe like 'default' from re-install?!

---

<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [2 May 2023 17:59 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/15 "2023-05-02T17:59:15Z")

</div>

Short of removing Node RED entirely (and its components), and reinstalling fresh, I'm a little out of ideas.

Your flows _should_ remain if doing this.

OR

What for someone more close to the core, to chip in 😅

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<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 18:01 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/16 "2023-05-02T18:01:19Z")

</div>

Is there an easy way to remove it completly by using command line?

---

<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [2 May 2023 18:04 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/17 "2023-05-02T18:04:33Z")

</div>

Not being a Windows user:

`npm uninstall [-g] node-red` `-g` if you installed globally

then check

`C:\Users\steve\AppData\Roaming\npm\node_modules\node-red`

is gone

---

<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 18:16 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/18 "2023-05-02T18:16:30Z")

</div>

Uninstalled. Folder was gone. Reinstalled, same problem... Is there any other folder where data could be left over?

---

<div class="post-metadata">

**Author:** ![marcus-j-davies](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/marcus-j-davies/32/103435_2.png) [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Post date:** [2 May 2023 18:31 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/19 "2023-05-02T18:31:36Z")

</div>

Ok, go here.

`C:\Users\Steve\.node-red`

and do `npm list` \<- what's the output.

````auto
```
here
```

````

---

<div class="post-metadata">

**Author:** ![steve1](https://avatars.discourse-cdn.com/v4/letter/s/3da27b/32.png) [@steve1](https://discourse.nodered.org/u/steve1)\
**Post date:** [2 May 2023 18:39 UTC](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112/20 "2023-05-02T18:39:15Z")

</div>

> [@marcus-j-davies](#):
>
> C:\Users\Steve.node-red

This was a good hint...  
C:\Users\steve.node-red\>npm list  
node-red-project@0.0.1 C:\Users\steve.node-red  
+-- node-red-contrib-iiot-opcua@4.0.11  
+-- node-red-contrib-opcua@0.2.289  
+-- node-red-contrib-tabletojson@1.0.3  
+-- node-red-mysql-r2@1.3.0  
`-- node-red-node-ui-table@0.4.3

Found another package.js in which the mayby faulty 'tabletojson' is in:  
{  
"name": "node-red-project",  
"description": "A Node-RED Project",  
"version": "0.0.1",  
"private": true,  
"dependencies": {  
"node-red-contrib-iiot-opcua": "~4.0.11",  
"node-red-contrib-opcua": "~0.2.289",  
"node-red-contrib-tabletojson": "~1.0.3",  
"node-red-mysql-r2": "~1.3.0",  
"node-red-node-ui-table": "~0.4.3"  
}  
}  
Can i just remove it from here?

[Next page](https://discourse.nodered.org/t/failed-to-start-server-registry-js27/78112.md?page=2)