WebGIS development using Node.js and Openlayers

Html and Javascript page:

[paulwilkie]

Great tutorial OpenGeoLab, just what I needed to get started. My goal is to have the OpenLayers API installed on my iPhone which can be opened to a hosted web-page to display an OpenLayers map in offline conditions (no internet of cellular connection). The final step is to display my GPS position as well as a friends position; shared via LoRa radios; passed via WiFi to my phone to display our relative positions as we travel the may forest trails in the Manistee National Forest.

[jscmwrramanathapuram]

i love to see your videos. i want to know the colour palette and colour changing option of polygon in the open layer. i would be grateful if you could inform how others can see my data in open layers

[sajadhamid]

Please upload the video for openlayers using node js

[muhmmmadsulaiman]

npm error code ENOENT
npm error syscall lstat
npm error path C:\Users\Muhammad Sulaiman\AppData\Roaming\npm
npm error errno -4058
npm error enoent ENOENT: no such file or directory, lstat 'C:\Users\Muhammad
npm error enoent This is related to npm not being able to find a file.
npm error enoent
npm error A complete log of this run can be found in: C:\Users\Muhammad

show me error