Get started with Claude Code in the cloud changedweb-quickstart
Nearest release: v2.1.319, published under an hour after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 6 Nov 2026 00:22 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 6 Nov 2026 00:37 UTC.
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239239### Setup script failed
240240
241The setup script exited with a non-zero status, which blocks the session from starting. Common causes:
241The [setup script](https://code.claude.com/docs/en/cloud-environments.md#setup-scripts) exited with a non-zero status, so the session failed to start or started without whatever the script failed to install. If the session started, you can keep working in it.
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243Common causes:
244
243245* A package install failed because the registry isn't in your [network access level](https://code.claude.com/docs/en/cloud-environments.md#access-levels). `Trusted` covers most package managers; `None` blocks them all.
244246* The script references a file or path that doesn't exist in a fresh clone.
245247* A command that works locally needs a different invocation on Ubuntu.
246248
247To debug, add `set -x` at the top of the script to see which command failed. For non-critical commands, append `|| true` so they don't block session start.
249To debug, add `set -x` at the top of the script to see which command failed. For non-critical commands, append `|| true` so they don't fail the script. After you fix the cause, start a new session so the script runs again. If what failed to start was a run of a [cloud scheduled task](https://code.claude.com/docs/en/routines.md), click **Run now** on the task's detail page instead of starting a new session.
248250
249251### New sessions hang or time out during setup
250252
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