401 Not Authorized when `e2b template build`

TL;DR

401 on e2b template build was fixed in @e2b/cli 1.0.6+. Update with npm i -g @e2b/cli@latest, then fix your Docker config per the troubleshooting guide at mount the host path https at container path //e2b.dev/docs/troubleshooting/templates/build-authentication-error

Steps

1. 401 on e2b template build was fixed in @e2b/cli 1.0.6+.
2. Update with npm i -g @e2b/cli@latest, then fix your Docker config per the troubleshooting guide at mount the host path https at container path //e2b.dev/docs/troubleshooting/templates/build-authentication-error

When to use

You are seeing this: Issue e2b-dev/e2b#450 (closed, 18 comments): Describe the bug When building my custom template, I get a 401 unauthorized when the container is being pushed. Use this skill when you run into "401 Not Authorized when e2b template build".

When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

Versions

Versions mentioned in the source: e2bcli 1.0.6. If you are on something much newer or older, the details may have shifted.

Why this happens

The original report does not dig into a root cause. It documents the symptom and the fix that resolved it.

In gh:e2b-dev/e2b#450 (E2B), the issue reported was: Issue e2b-dev/e2b#450 (closed, 18 comments): Describe the bug When building my custom template, I get a 401 unauthorized when the container is being pushed. To Reproduce Steps to reproduce the behavior: 1. Build the template (see command below) 2. Watch it blow up when pushing the container. Expected behavior The template container to be built successfully. Terminal commands & output `` $ e2b auth login $ e2b template init $ e2b template build -c "/root/.jupyter/start-up.sh" Found ./e2b.Dockerfile that will be used to build the sandbox template. Requested build for the sandbox template 6ojhigpl457r6esinxey Login Succeede The verified resolution from the thread: 401 on e2b template build was fixed in @e2b/cli 1.0.6+. Update with npm i -g @e2b/cli@latest`, then fix your Docker config per the troubleshooting guide at mount the host path https at container path //e2b.dev/docs/troubleshooting/templates/build-authentication-error Source: mount the host path https at container path //github.com/e2b-dev/e2b/issues/450