Software⏱️ 3 min read📅 2026-06-04

How to Fix: Yarn ERROR: There are no scenarios; must have at least one

Yarn installation error with no scenarios; check yarn version and update if necessary.

Quick Answer: Check Yarn version, update to the latest version if necessary, and try installing again.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. ✅ Best Solutions to Fix It
  3. 🎯 Final Words

The 'There are no scenarios; must have at least one' error occurs when using the yarn command, preventing you from installing or managing packages. This issue affects users of Yarn version 0.32 and above.

This error can be frustrating as it prevents you from completing tasks such as installing dependencies for a project. In this guide, we will walk through the root causes of this issue and provide two primary methods to resolve it.

🔍 Why This Happens

  • The primary reason for this error is that Yarn version 0.32 and above has a new feature called 'Scenario-less' mode. This mode requires at least one scenario (i.e., package) to be installed before proceeding. If no scenarios are specified, Yarn will display the 'There are no scenarios; must have at least one' error.
  • Another possible cause is that there might be an issue with your system's configuration or a corrupted Yarn installation. In some cases, this error can also occur due to incorrect package naming conventions.

✅ Best Solutions to Fix It

Update Yarn to the latest version

  1. Step 1: Open a terminal and run the command `yarn upgrade` to update Yarn to the latest version.
  2. Step 2: Wait for the update process to complete. This may take several minutes depending on your internet connection speed.
  3. Step 3: Verify that Yarn has been updated successfully by running `yarn --version`. If the error persists, proceed with the next method.

Install a specific package

  1. Step 1: Try installing a specific package using the command `yarn add `.
  2. Step 2: Replace `` with the name of a popular package like `yarn` or `npm`. This will ensure that at least one scenario is specified, and Yarn can proceed with the installation process.
  3. Step 3: If this method resolves the issue, it's likely that there was an issue with your system configuration or a corrupted Yarn installation.

🎯 Final Words

To resolve the 'There are no scenarios; must have at least one' error when using yarn, try updating Yarn to the latest version or installing a specific package. If neither method works, it's recommended to reinstall Yarn or seek further assistance from the Yarn community.

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