# fatal: Not a valid object name: 'main'.

**Code:** `not a valid object name` · **Category:** Git · **Seen on:** Git

The branch or commit doesn’t exist yet — typically in a new repo before the first commit.

## Meaning

Creating branches from main before any commit exists fails because main has no commit to point at.

## Common causes

- No commits yet
- Typo in ref name
- Ref not fetched

## Quick fix

1. Make the first commit
2. Fetch the ref
3. Check spelling

## Detailed fix by platform

### Git

1. `git commit --allow-empty -m "init" && git branch develop`

## How to diagnose

1. **Ref** — Does it exist (git show-ref)?
2. **Recent change** — Did it start after a deploy, upgrade, or configuration change? Compare with the last working version.

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Source: [WhatIsMyError](https://whatismyerror.com/errors/git/not-a-valid-object-name)