# Errors while installing new nodes

**URL:** <https://discourse.nodered.org/t/errors-while-installing-new-nodes/32295>\
**Category:** General\
**Created:** [1 September 2020 10:46 UTC](https://discourse.nodered.org/t/errors-while-installing-new-nodes/32295 "2020-09-01T10:46:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![htrendafilov](https://avatars.discourse-cdn.com/v4/letter/h/e5b9ba/32.png) [@htrendafilov](https://discourse.nodered.org/u/htrendafilov)\
**Post date:** [1 September 2020 10:46 UTC](https://discourse.nodered.org/t/errors-while-installing-new-nodes/32295/1 "2020-09-01T10:46:33Z")

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Hello!

I'm installing some nodes on newly imaged Pi4 4GB.  
There are some errors in the LogView during installation.  
The nodes are working any way.

Should I be concerned about the errors ?  
and what can I do about that?

Thank you !

 ![node install 01](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/c/1/c12e06569daf12ad1c77c44c2372ca2c8fc32c0f.jpeg) ![node install 02](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/1/3/139a0bc54c6328fbf98245f2e026a5d86444b241.jpeg) ![node install 03](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/6/9/69b42affe5b641f3f7cc3e2aa28557052fada8c1.jpeg) ![node install 04](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/c/6/c6b2f9d2f8ce1a5e893d798aba6683443015c05b.jpeg)

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<div class="post-metadata">

**Author:** ![TotallyInformation](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/totallyinformation/32/31_2.png) [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Post date:** [1 September 2020 11:01 UTC](https://discourse.nodered.org/t/errors-while-installing-new-nodes/32295/2 "2020-09-01T11:01:28Z")

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Looks like you may not have installed the build essentials.

```auto
sudo apt-get install build-essential

```

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**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:** [1 September 2020 11:01 UTC](https://discourse.nodered.org/t/errors-while-installing-new-nodes/32295/3 "2020-09-01T11:01:30Z")

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It failed to install the `usb` module - but it looks like the node you were installing `node-red-contrib-s7` has that listed as an optional dependency, and the overall install of the node succeeded. Whether that is an issue for you will depend on whether you wanted to use whatever optional functionality in the s7 node relied on the usb module.

If you wanted to get it fully installed, the `usb` module depends on some extra OS-specific packages to have already been installed - [https://www.npmjs.com/package/usb#installation](https://www.npmjs.com/package/usb#installation). In summary, you should be able to run:

```auto
sudo apt-get install build-essential libudev-dev

```

then try reinstalling the s7 node.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [31 October 2020 11:01 UTC](https://discourse.nodered.org/t/errors-while-installing-new-nodes/32295/4 "2020-10-31T11:01:36Z")

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Closed on 31 October 2020 11:01 UTC

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