Before Node-RED Installation we need some dependency file
Like npm package manager, node.js
first check these packages are installed in your system or not using some comands
open cmd and type:
node -v
npm
If this type of error is coming then: Solution is
1. Lets first install “Node.js” through Node.js “npm” package will installed automatically
For Node.js package go to official website and download the installer file throght the given link: https://nodejs.org/en/download/
2. Run the installer file
3. After installation complete go to command prompt again and verify the version by giving command “node -v”
4.If you get the response then everything is good. Now download node-red by giving command
npm install -g node-red
5. Then Confirm node-red is installed Properly or not by this command: node-red
6. Get node-red dashboard by giving command
npm install node-red-dashboard
7. After all the install get completed then Go to Browser and search 127.0.0.1:1880 or localhost:1880
NOTE:
If This Type of error is coming:
Problem:
npm ERR! Unexpected end of JSON input while parsing near ‘…RP9TBIgMxtSRaXP2lU+2B’
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Mamu\AppData\Roaming\npm-cache\_logs\2020-02-28T13_55_36_081Z-debug.log
Solution:
In cmd type these commands it will work
npm cache clean --force
npm install -g @angular/cli@latest
npm install -g node-red