# Plexamp for Raspberry Pi - Node incompatibility **URL:** \ **Category:** Plex Labs\ **Tags:** plexamp\ **Created:** [June 27, 2019, 3:00pm UTC](https://forums.plex.tv/t/plexamp-for-raspberry-pi-node-incompatibility/427310 "2019-06-27T15:00:27Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![timheslop](https://avatars.discourse-cdn.com/v4/letter/t/ea5d25/32.png) [@timheslop](https://forums.plex.tv/u/timheslop)\ **Post date:** [June 27, 2019, 3:00pm UTC](https://forums.plex.tv/t/plexamp-for-raspberry-pi-node-incompatibility/427310/1 "2019-06-27T15:00:27Z")
Hi there I have got one install of Plexamp for Pi headless working, however I have come to build another and am struggling. I think that the repos with Node in have moved along and we need a recompile of the client. I am using the latest and greatest raspbian (buster) and following the instructions, it appears that everything works, however when I come to run it it doesn’t register with the server. using ```auto sudo systemctl status plexamp ``` I can see that the service continually restarts as the Active line shows that it never runs for longer than a few seconds To debug this, I have run it at the command line, using ```auto /usr/bin/node /home/pi/plexamp/server/server.prod.js ``` It throws an error and gives the following info: ```auto /home/pi/plexamp/server/node_modules/bindings/bindings.js:83 throw e ^ Error: The module '/home/pi/plexamp/server/node_modules/serialport/build/Release/serialport.node' was compiled against a different Node.js version using NODE_MODULE_VERSION 59. This version of Node.js requires NODE_MODULE_VERSION 64. Please try re-compiling or re-installing the module (for instance, using `npm rebuild` or `npm install`). at Object.Module._extensions..node (internal/modules/cjs/loader.js:718:18) at Module.load (internal/modules/cjs/loader.js:599:32) at tryModuleLoad (internal/modules/cjs/loader.js:538:12) at Function.Module._load (internal/modules/cjs/loader.js:530:3) at Module.require (internal/modules/cjs/loader.js:637:17) at require (internal/modules/cjs/helpers.js:22:18) at bindings (/home/pi/plexamp/server/node_modules/bindings/bindings.js:76:44) at Object. (/home/pi/plexamp/server/node_modules/serialport/lib/bindings.js:3:35) at Module._compile (internal/modules/cjs/loader.js:689:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10) ``` I have run out of skill to correct this, but if it is happening to me, then I am not going to be the only one … Any chance of some guidance or a new release? Thanks Tim ---
**Author:** ![timheslop](https://avatars.discourse-cdn.com/v4/letter/t/ea5d25/32.png) [@timheslop](https://forums.plex.tv/u/timheslop)\ **Post date:** [June 27, 2019, 8:21pm UTC](https://forums.plex.tv/t/plexamp-for-raspberry-pi-node-incompatibility/427310/2 "2019-06-27T20:21:08Z")
OK - I have fixed it, and so I will share what worked for me so that others might also be able to fix it. Having reached a point where it didn’t work, and having worked out that it was a node version issue, the right thing to do is to try and get the right version of node on the pi … To do this, I cleaned up and installed binaries of the right version direct from the [nodejs.org](http://nodejs.org) website … #### Stop the plexamp service ```bash sudo systemctl stop plexamp ``` #### Uninstalling node I tried lots of things, and ended up with a bit of a mess that I had to clean up. In short I removed it using instructions that I found [here](https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-ubuntu-16-04#removing-nodejs "Instructions") This will delete any of the installs from the repos. ```bash sudo apt-get remove nodejs sudo apt-get purge nodejs sudo apt-get autoremove ``` If you try any manual installs using npm or nvm then you will have more work to do … #### Installing node from [nodejs.org](http://nodejs.org) Open the [Nodejs website](https://nodejs.org/) in a browser. Follow the link for Other Downloads from the front page Towards the bottom, you will find the link for Previous Releases. It took me to [https://nodejs.org/en/download/releases/](https://nodejs.org/en/download/releases/) Here you can see all the different versions that you might want. We are looking for a version 9. I followed the link marked [Downloads](https://nodejs.org/download/release/v9.11.2/) for v9.11.2 which was the last v9 release. This pulls up a big list of files. You are looking for the one that suits your pi. Do a quick ```bash uname -a ``` In the result it shows you what ```auto Linux blackpi 4.19.50-v7+ #896 SMP Thu Jun 20 16:11:44 BST 2019 armv7l GNU/Linux ``` In this case armv71 - hence the file I want is named [node-v9.11.2-linux-armv7l.tar.gz](https://nodejs.org/download/release/v9.11.2/node-v9.11.2-linux-armv7l.tar.gz) So back to your terminal session on your pi … ```bash #download the file wget https://nodejs.org/download/release/v9.11.2/node-v9.11.2-linux-armv7l.tar.gz #create an install area and extract sudo mkdir -p /usr/local/lib/nodejs sudo tar -xJvf node-v9.11.2-linux-armv7l.tar.gz -C /usr/local/lib/nodejs #set a couple of env variables VERSION=v9.11.2 DISTRO=arm71 #make the system wide links sudo ln -s /usr/local/lib/nodejs/node-$VERSION-$DISTRO/bin/node /usr/bin/node sudo ln -s /usr/local/lib/nodejs/node-$VERSION-$DISTRO/bin/npm /usr/bin/npm sudo ln -s /usr/local/lib/nodejs/node-$VERSION-$DISTRO/bin/npx /usr/bin/npx #check that the versions at a system level are right node -v npm version npx -v ``` (based on the official instructions from the Nodejs site found from the download page entitled [Installing Node.js via binary archive on Linux](https://github.com/nodejs/help/wiki/Installation) ) This should give you a working node installation. #### Starting plexamp again ```bash sudo systemctl start plexamp #Now check whether your plexamp is working sudo systemctl status plexamp -n 50 ``` If you still have an error, check you have copied over your server.json correctly. One mistake I made which took some time to spot was creating ```auto ~pi/.config/plexamp/server.json ``` when it should have been ```auto ~pi/.config/Plexamp/server.json ``` This stops it working. Assuming you get everything right, then the player will connect to the server and sweet music will come out of the headphone socket. One more tip … Adjust the volume in alsamixer to increase the volume ---
**Author:** ![elan](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/elan/32/5_2.png) [@elan](https://forums.plex.tv/u/elan)\ **Post date:** [June 27, 2019, 11:11pm UTC](https://forums.plex.tv/t/plexamp-for-raspberry-pi-node-incompatibility/427310/3 "2019-06-27T23:11:18Z")
This implies a node mismatch. Per [Plexamp for Raspberry Pi Release Notes](https://forums.plex.tv/t/plexamp-for-raspberry-pi-release-notes/368282) you need Node 9. ---
**Author:** ![cryptout](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/cryptout/32/154035_2.png) [@cryptout](https://forums.plex.tv/u/cryptout)\ **Post date:** [September 2, 2019, 7:49pm UTC](https://forums.plex.tv/t/plexamp-for-raspberry-pi-node-incompatibility/427310/4 "2019-09-02T19:49:43Z")
> [@timheslop](#): > > looking I’m getting this error when I connect with my mobile app to the plexamp pi ```sh Jul 10 06:17:02 raspberrypi node[507]: error: [ERROR] TypeError: path must be absolute or specify root to res.sendFile Jul 10 06:17:02 raspberrypi node[507]: at ServerResponse.L.sendFile (/home/pi/plexamp/server/server.prod.js:1:1199278) Jul 10 06:17:02 raspberrypi node[507]: at expressApp.get (/home/pi/plexamp/server/server.prod.js:1:741187) Jul 10 06:17:02 raspberrypi node[507]: at r.handle_request (/home/pi/plexamp/server/server.prod.js:1:1208804) Jul 10 06:17:02 raspberrypi node[507]: at r (/home/pi/plexamp/server/server.prod.js:1:1210231) Jul 10 06:17:02 raspberrypi node[507]: at r.dispatch (/home/pi/plexamp/server/server.prod.js:1:1210390) Jul 10 06:17:02 raspberrypi node[507]: at r.handle_request (/home/pi/plexamp/server/server.prod.js:1:1208804) Jul 10 06:17:02 raspberrypi node[507]: at /home/pi/plexamp/server/server.prod.js:1:1205075 Jul 10 06:17:02 raspberrypi node[507]: at s (/home/pi/plexamp/server/server.prod.js:1:1206536) Jul 10 06:17:02 raspberrypi node[507]: at s (/home/pi/plexamp/server/server.prod.js:1:1206730) Jul 10 06:17:02 raspberrypi node[507]: at Function.f.process_params (/home/pi/plexamp/server/server.prod.js:1:1206953) Jul 10 06:17:02 raspberrypi node[507]: at r (/home/pi/plexamp/server/server.prod.js:1:1205019) Jul 10 06:17:02 raspberrypi node[507]: at /home/pi/plexamp/server/server.prod.js:1:1206027 Jul 10 06:17:02 raspberrypi node[507]: at r (/home/pi/plexamp/server/server.prod.js:1:1204736) Jul 10 06:17:02 raspberrypi node[507]: at Function.f.handle (/home/pi/plexamp/server/server.prod.js:1:1206454) Jul 10 06:17:02 raspberrypi node[507]: at t (/home/pi/plexamp/server/server.prod.js:1:1203430) Jul 10 06:17:02 raspberrypi node[507]: at r.handle_request (/home/pi/plexamp/server/server.prod.js:1:1208804) Jul 10 06:17:02 raspberrypi node[507]: at /home/pi/plexamp/server/server.prod.js:1:1205447 Jul 10 06:17:02 raspberrypi node[507]: at /home/pi/plexamp/server/server.prod.js:1:1205469 Jul 10 06:17:02 raspberrypi node[507]: at Function.f.process_params (/home/pi/plexamp/server/server.prod.js:1:1206927) Jul 10 06:17:02 raspberrypi node[507]: at r (/home/pi/plexamp/server/server.prod.js:1:1205019) Jul 10 06:17:02 raspberrypi node[507]: at /home/pi/plexamp/server/server.prod.js:1:1206027 Jul 10 06:17:02 raspberrypi node[507]: at r (/home/pi/plexamp/server/server.prod.js:1:1204736) ``` ---
**Author:** ![whileseated](https://avatars.discourse-cdn.com/v4/letter/w/43a26b/32.png) [@whileseated](https://forums.plex.tv/u/whileseated)\ **Post date:** [September 6, 2019, 12:58am UTC](https://forums.plex.tv/t/plexamp-for-raspberry-pi-node-incompatibility/427310/5 "2019-09-06T00:58:43Z")
> [@timheslop](#): > > DISTRO=arm71 Shouldn’t this be: DISTRO=linux-armv71 ---
**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\ **Post date:** [December 5, 2019, 12:58am UTC](https://forums.plex.tv/t/plexamp-for-raspberry-pi-node-incompatibility/427310/6 "2019-12-05T00:58:49Z")
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