# Node Red OPCUA error when installing

**URL:** <https://discourse.nodered.org/t/node-red-opcua-error-when-installing/10952>\
**Category:** General\
**Created:** [9 May 2019 12:59 UTC](https://discourse.nodered.org/t/node-red-opcua-error-when-installing/10952 "2019-05-09T12:59:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![vysakhraj](https://avatars.discourse-cdn.com/v4/letter/v/0ea827/32.png) [@vysakhraj](https://discourse.nodered.org/u/vysakhraj)\
**Post date:** [9 May 2019 12:59 UTC](https://discourse.nodered.org/t/node-red-opcua-error-when-installing/10952/1 "2019-05-09T12:59:23Z")

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Hi All,

I am facing an issue when I try to install OPCUA node in Node Red... Below is the message I am getting when I try to install it. Can someone please tell me why this is happening and how can I solve it ?

root@iot2000:~# npm install node-red-contrib-opcua  
npm ERR! Linux 4.4.105-cip15  
npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "install" "node-red-contrib-opcua"  
npm ERR! node v6.12.3  
npm ERR! npm v3.10.10  
npm ERR! code EAI\_AGAIN  
npm ERR! errno EAI\_AGAIN  
npm ERR! syscall getaddrinfo

npm ERR! getaddrinfo EAI\_AGAIN [registry.npmjs.org:443](http://registry.npmjs.org:443)  
npm ERR!  
npm ERR! If you need help, you may report this error at:  
npm ERR! [https://github.com/npm/npm/issues](https://github.com/npm/npm/issues)

npm ERR! Please include the following file with any support request:  
npm ERR! /home/root/npm-debug.log

Best Regards.

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<div class="post-metadata">

**Author:** ![ukmoose](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ukmoose/32/13_2.png) [@ukmoose](https://discourse.nodered.org/u/ukmoose)\
**Post date:** [9 May 2019 13:34 UTC](https://discourse.nodered.org/t/node-red-opcua-error-when-installing/10952/2 "2019-05-09T13:34:39Z")

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If you google EAI\_AGAIN you will see it is a DNS error so its a network issue