Issue solved here: https://github.com/eouia/MMM-AssistantMk2/issues/231

@sdetweil said in Failed at the magicmirror@2.9.0 start script:

node_modules/.bin/electron-rebuild

Followed the instructions above and still getting the same error
/home/pi/MagicMirror/node_modules/electron/dist/electron js/electron.js: symbol lookup error: /home/pi/MagicMirror/modules/MMM-AssistantMk2/node_modules/grpc/src/node/extension_binary/electron-v3.0-linux-arm-glibc/grpc_node.node: undefined symbol: __atomic_store_8
npm ERR! code ELIFECYCLE
npm ERR! syscall spawn
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! magicmirror@2.9.0 start: sh run-start.sh
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the magicmirror@2.9.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/pi/.npm/_logs/2019-10-25T07_45_43_692Z-debug.log

please advise. thank you

@sdetweil I have followed all the steps in the installation guide and still getting the same error as @INMD1 please let me know if there is a certain set of instructions that needs to be followed. Thank you