# Capacitor App Upgrade V4 To V5

> Guides the agent through upgrading a Capacitor app from v4 to v5. Use when the project is on Capacitor 4 and needs the v5 migration path. Do not use for other major versions, plugin-only upgrades, or non-Capacitor apps.

- Skill: `cap-go/capacitor-app-upgrade-v4-to-v5` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add cap-go/capacitor-app-upgrade-v4-to-v5`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cap-go/capacitor-app-upgrade-v4-to-v5/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: cap-go (https://skillmd.com/u/cap-go)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/cap-go/capacitor-app-upgrade-v4-to-v5

---


# Capacitor App Upgrade v4 to v5

Upgrade a Capacitor app from version 4 to version 5.

## When to Use This Skill

- User says the app is on Capacitor 4 and must move to v5
- User wants the exact v4 to v5 migration path
- User needs v5-specific native and package updates

## Live Project Snapshot

Current Capacitor packages from `package.json`:
!`node -e "const fs=require('fs');if(!fs.existsSync('package.json'))process.exit(0);const pkg=JSON.parse(fs.readFileSync('package.json','utf8'));const out=[];for(const section of ['dependencies','devDependencies']){for(const [name,version] of Object.entries(pkg[section]||{})){if(name.startsWith('@capacitor/'))out.push(section+'.'+name+'='+version)}}console.log(out.sort().join('\n'))"`

## Procedure

1. Start from the injected package snapshot and confirm the current `@capacitor/core` version.
2. Update all `@capacitor/*` packages to the v5-compatible range.
3. Review the v4 to v5 migration notes before editing native files.
4. Run `npm install`.
5. Sync with `npx cap sync`.
6. Verify the iOS and Android builds.

## Error Handling

- If the automated migration misses a package, update it manually before syncing again.
- If iOS fails, check the deployment target and Xcode compatibility for Capacitor 5.
- If Android fails, check the Gradle and Java requirements for Capacitor 5.