Mobile Offline Developer Guide

Offline App Development with Lightning Web Components and LWC Offline
Considerations and Limitations
Offline Considerations
Use Salesforce Features While Offline
Development Tools and Processes
Set Up Your Development Environment
Validate Lightning Web Components for Offline Use
Develop Offline-Ready LWCs with the LWC Offline Test Harness
Prerequisites and Setup Considerations
Download and Install — Android
Download and Install — iOS
Use the Test Harness App
Debug Lightning Web Components
Enable Debugging for LWC Developers
Install Local Development Server Plugin
Debug in Android
Debug in iOS
Customize the Offline Experience for the Salesforce Mobile App
Quick Start Tutorials
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Install Local Development Server Plugin

Whether you’re debugging your component for iOS or Android, you must first install the LWC Development Server for mobile.
  1. In a terminal window in VS Code, or from your project directory in Terminal, run the following command to install the LWC Development Server for mobile.
    sfdx plugins:install @salesforce/lwc-dev-server