# Can not install node-red-contrib-slack version 0.1.2

**URL:** <https://discourse.nodered.org/t/can-not-install-node-red-contrib-slack-version-0-1-2/2407>\
**Category:** General\
**Created:** [19 August 2018 20:40 UTC](https://discourse.nodered.org/t/can-not-install-node-red-contrib-slack-version-0-1-2/2407 "2018-08-19T20:40:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![janvda](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/janvda/32/234_2.png) [@janvda](https://discourse.nodered.org/u/janvda)\
**Post date:** [19 August 2018 20:40 UTC](https://discourse.nodered.org/t/can-not-install-node-red-contrib-slack-version-0-1-2/2407/1 "2018-08-19T20:40:41Z")

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I have upgraded node-red on my raspberry pi using the following command:

> bash \<(curl -sL [https://raw.githubusercontent.com/node-red/raspbian-deb-package/master/resources/update-nodejs-and-nodered](https://raw.githubusercontent.com/node-red/raspbian-deb-package/master/resources/update-nodejs-and-nodered))

but it had a problem (re)installing node-red-contrib-slack version 0.1.3) which makes sense as version 0.1.3 is not the latest official version (= 0.1.2) but a version that I have created ( = [GitHub - janvda/node-red-slack: A node-red module to post to Slack.com](https://github.com/janvda/node-red-slack))

So the following is seen in my node red log file:  
\> Welcome to Node-RED

> ```
> ===================
> 19 Aug 09:33:10 - [info] Node-RED version: v0.19.1
> 19 Aug 09:33:10 - [info] Node.js version: v8.11.4
> 19 Aug 09:33:10 - [info] Linux 4.9.35-v7+ arm LE
> 19 Aug 09:33:11 - [info] Loading palette nodes
> 19 Aug 09:33:18 - [info] Dashboard version 2.9.1 started at /ui
> 19 Aug 09:33:19 - [warn] Missing node modules:
> 19 Aug 09:33:19 - [warn] - node-red-contrib-slack (0.1.3): slack, Slack Bot In, Slack Bot Out
> 19 Aug 09:33:19 - [warn] - node-red-contrib-jva-test (undefined): lower-case, jva-test
> 19 Aug 09:33:19 - [info] Removing modules from config
> 19 Aug 09:33:19 - [info] Settings file : /home/pi/.node-red/settings.js
> 19 Aug 09:33:19 - [info] Context store : 'default' [module=memory]
> 19 Aug 09:33:19 - [info] User directory : /home/pi/.node-red
> 19 Aug 09:33:19 - [info] Server now running at http://127.0.0.1:1880/
> 19 Aug 09:33:19 - [info] Active project : pi3three
> 19 Aug 09:33:19 - [info] Flows file : /home/pi/.node-red/projects/pi3three/flows_pi3three.json
> 19 Aug 09:33:19 - [info] Waiting for missing types to be registered:
> 19 Aug 09:33:19 - [info] - slack
> 19 Aug 09:33:19 - [info] - Slack Bot In
> 19 Aug 09:33:19 - [info] - Slack Bot Out
> 
> ```

So I would like to (re)install the latest official version of node-red-contrib-slack version (= version 0.1.2). I have tried doing so form the node-red manage palette but this resulted in the following error message:

> 19 Aug 22:23:22 - [info] Installing module: node-red-contrib-slack, version: 0.1.2  
> 19 Aug 22:23:43 - [warn] Installation of module node-red-contrib-slack failed:  
> 19 Aug 22:23:43 - [warn] ------------------------------------------  
> 19 Aug 22:23:43 - [warn] npm WARN checkPermissions Missing write access to /home/pi/.node-red/node\_modules/node-red-contrib-slack  
> npm WARN node-red-project@0.0.1 No repository field.  
> npm WARN node-red-project@0.0.1 No license field.  
> npm ERR! path /home/pi/.node-red/node\_modules/node-red-contrib-slack  
> npm ERR! code ENOENT  
> npm ERR! errno -2  
> npm ERR! syscall access  
> npm ERR! enoent ENOENT: no such file or directory, access '/home/pi/.node-red/node\_modules/node-red-contrib-slack'  
> npm ERR! enoent This is related to npm not being able to find a file.  
> npm ERR! enoent  
> npm ERR! A complete log of this run can be found in:  
> npm ERR! /home/pi/.npm/\_logs/2018-08-19T20\_23\_43\_765Z-debug.log  
> 19 Aug 22:23:43 - [warn] ------------------------------------------

So how can I resolve this issue ?

---

<div class="post-metadata">

**Author:** ![janvda](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/janvda/32/234_2.png) [@janvda](https://discourse.nodered.org/u/janvda)\
**Post date:** [19 August 2018 20:52 UTC](https://discourse.nodered.org/t/can-not-install-node-red-contrib-slack-version-0-1-2/2407/2 "2018-08-19T20:52:29Z")

</div>

I found the reason why installing _node-red-contrib-slack_ failed.  
Apparently the folder _node-red-contrib-slack/_ was a symbolic link to a non-existing folder (see evidence below)  
I fixed this by deleting the folder _node-red-contrib-slack/_ (see also below) and then reinstalling it through manage palette.

> ```
> pi@pi3three:~/.node-red/node_modules $ ls -l node-red-contrib-slack
> lrwxrwxrwx 1 pi pi 55 Mar 11 15:26 node-red-contrib-slack -> ../../../../usr/lib/node_modules/node-red-contrib-slack
> pi@pi3three:~/.node-red/node_modules $ cd node-red-contrib-slack
> -bash: cd: node-red-contrib-slack: No such file or directory
> pi@pi3three:~/.node-red/node_modules $ rm node-red-contrib-slack
> pi@pi3three:~/.node-red/node_modules $ cd node-red-contrib-slack
> -bash: cd: node-red-contrib-slack: No such file or directory
> 
> ```