capacitor-app-migrations

Original：🇺🇸 English

Translated

Guides the agent through migrating a Capacitor app project to a newer major version. Supports migrations from Capacitor 4 through 8, including multi-version jumps. Covers automated migration via the Capacitor CLI and manual step-by-step fallback for each version. Do not use for plugin library migration or non-Capacitor mobile frameworks.

3installs

Sourcecapawesome-team/skills

Added on2026-03-17

NPX Install

npx skill4agent add capawesome-team/skills capacitor-app-migrations

SKILL.md Content

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Capacitor App Migration

Migrate a Capacitor app project to a newer major version (4→5, 5→6, 6→7, or 7→8).

Prerequisites

Target Version	Node.js	Xcode	Android Studio
5	16+	14.1+	Flamingo 2022.2.1+ (Java 17)
6	18+	15.0+	Hedgehog 2023.1.1+
7	20+	16.0+	Ladybug 2024.2.1+ (Java 21)
8	22+	26.0+	Otter 2025.2.1+

Procedures

Step 1: Detect Current Version

Read

@capacitor/core

version from

package.json

(

dependencies

or

devDependencies

). Determine the current major version.

Ask the user for the target version. Default to the latest (8) if not specified.

Step 2: Execute Migration

For each major version jump between the current and target version, apply the corresponding migration guide sequentially:

Current → Target	Reference
4 → 5	`references/migration-v4-to-v5.md`
5 → 6	`references/migration-v5-to-v6.md`
6 → 7	`references/migration-v6-to-v7.md`
7 → 8	`references/migration-v7-to-v8.md`

For multi-version jumps (e.g., 5 → 8), apply each migration in order:

Read and apply
```
references/migration-v5-to-v6.md
```
Run
```
npx cap sync
```
, build, and verify on both platforms
Read and apply
```
references/migration-v6-to-v7.md
```
Run
```
npx cap sync
```
, build, and verify on both platforms
Read and apply
```
references/migration-v7-to-v8.md
```
Run
```
npx cap sync
```
, build, and verify on both platforms

Do not skip intermediate versions.

Step 3: Final Verification

After completing all migration steps:

bash

npx cap sync
npx cap run android
npx cap run ios

Error Handling

If
```
npx cap migrate
```
fails partially, check the terminal output for which steps failed and apply those manually using the steps in the corresponding reference file.
If Android build fails after migration, run Tools > AGP Upgrade Assistant in Android Studio.
If iOS build fails, verify the deployment target matches the target version requirements in the reference file.
If Gradle property syntax warnings appear (v8+), search all
```
.gradle
```
files for property assignments without
```
=
```
and update them.
If a multi-version migration fails mid-way, fix the current version step before proceeding to the next.