# CocoaPods could not find compatible versions for pod

**Code:** `CocoaPods compatible versions` · **Category:** iOS · **Seen on:** iOS

pod install can’t satisfy the version constraints — outdated spec repo, a higher deployment target required, or two pods needing conflicting versions.

## Meaning

CocoaPods resolves all pods together. The message lists who requires what. Outdated local specs, the Podfile `platform :ios` being lower than a pod requires, or locked versions in Podfile.lock are the usual causes.

## Common causes

- Local spec repo out of date
- Podfile platform / deployment target lower than the pod’s minimum
- Two pods requiring incompatible versions of a shared dependency
- Podfile.lock pinning old versions

## Quick fix

1. `pod repo update` then `pod install`
2. Raise `platform :ios, '13.0'` (or what the pod requires)
3. `pod update PodName` to move a locked pod
4. Consider Swift Package Manager for that dependency

## Detailed fix by platform

### iOS

1. Typical fix sequence:

```bash
cd ios
pod repo update
pod install --repo-update
# still stuck on a locked version:
pod update FirebaseCore
```


## How to diagnose

1. **Message** — Which pod and which constraint?
2. **Platform** — Deployment target vs pod minimum
3. **Lock** — Pinned in Podfile.lock?

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Source: [WhatIsMyError](https://whatismyerror.com/errors/ios/cocoapods-could-not-find-compatible-versions)