Common Create-React-App Errors

TypeError: cmd is not a function

This error typically occurs when you set up a Medusa project with create-medusa-app and try to run the Medusa backend.

To resolve this issue, make sure you change into the backend directory of the Medusa project you created before trying to start the Medusa backend:

• npm
• Yarn
• pnpm

cd backend
npx medusa develop

cd backend
npx medusa develop

cd backend
npx medusa develop

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Invalid Token Error with --no-browser Option

If you use the --no-browser option with the create-medusa-app command, you'll find a URL outputted at the end of the command execution. This is the URL that you can use to set a password for your admin user.

However, if you copy the URL, then try later to access that URL, you may receive an "Invalid Token" error. This is because when you copy the URL, a lot of extra space may be added into the token. So, you must clear out the spaces within the token and the || characters, then try again.

Alternatively, you can create a new user with the medusa user command.

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Can't Connect to PostgreSQL Docker Container

When connecting your Medusa backend to a PostgreSQL Docker container, make sure the 5432 port is exposed.

To do that, either pass the -p option to the docker run command. For example:

docker run -d -p 5432:5432 --name some-postgres -e POSTGRES_PASSWORD=supersecret postgres

Or, if you're using Docker Desktop, you can provide the option under the container's "Optional settings" collapsable.

If you expose the PostgreSQL docker container at a port other than 5432, make sure to include it in your database URL.

When installing Medusa with create-medusa-app, you can provide a database URL with the different port using the --db-url option.

For example:

npx create-medusa-app@latest --db-url "postgres://user:password@localhost:<YOUR_PORT>/medusa-store"

Where <YOUR_PORT> is the exposed port if it's different than 5432.

Refer to the database_url configuration documentation to learn how to set the database URL for an installed Medusa backend.

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Other Errors

As a last resort to resolve your issue, please try to clear your npx cache, as it could hold a cached version of create-medusa-app with errors.

MacOS and Linux

Run the following command:

rm -rf "$(npm config get cache)/_npx"

Try running the create-medusa-app command again.

Windows

First, find the cache directory with the following command:

npm config get cache

The npx cache should be in the directory <NPM_CACHE>/_npx, where <NPM_CACHE> is the cache directory returned by the previous command. Delete that directory and try running the create-medusa-app command again.

If your issue persists, please try to search through our GitHub issues to see if there's a solution for your issue. If not, please create an issue on GitHub and our team will help you resolve it soon."