Error reference changederrors
Upstream edited this page at 27 Sep 2026 16:27 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 27 Sep 2026 16:37 UTC.
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229229| `Output styles are saved to local settings (.claude/settings.local.json), which this session doesn't load` | [Command-line errors](#output-styles-are-saved-to-local-settings-which-this-session-doesnt-load) |
230230| `` `plugin eval` is currently in early access `` / `` `plugin eval` is currently unavailable `` | [Plugin errors](#plugin-eval-is-currently-in-early-access) |
231231| `Marketplace "<name>" is registered from an untrusted source` | [Plugin errors](#marketplace-is-registered-from-an-untrusted-source) |
232| `Claude Code refuses the marketplace name "<name>"` | [Plugin errors](#claude-code-refuses-the-marketplace-name) |
233| `Marketplace name impersonates an official Anthropic/Claude marketplace` | [Plugin errors](#claude-code-refuses-the-marketplace-name) |
232234| `Marketplace "<name>" is already added from a different source` | [Plugin errors](#marketplace-is-already-added-from-a-different-source) |
233235| `"<name>" is another spelling of "<reserved>", a reserved marketplace name` | [Plugin errors](#marketplace-name-is-another-spelling-of-a-reserved-name) |
234236| `references ${user_config.*} in a shell-form command` | [Plugin errors](#plugin-command-references-user-config) |
from line 244
242244| `Failed to load marketplace configuration` | [Plugin errors](#failed-to-load-marketplace-configuration) |
243245| `Marketplace configuration file is corrupted` | [Plugin errors](#failed-to-load-marketplace-configuration) |
244246| `Plugin "<name>@synced" is required by your organization and can't be disabled here` | [Plugin errors](#plugin-is-required-by-your-organization) |
247| `"<plugin>" was not uninstalled: it is still switched on in <file>` | [Plugin errors](#plugin-was-not-uninstalled) |
248| `"<plugin>" was not uninstalled: <file> is there and could not be read` | [Plugin errors](#plugin-was-not-uninstalled) |
245249| `would be spawned with zero tools — refusing` | [Tool errors](#agent-would-be-spawned-with-zero-tools) |
246250| `File is covered by a Read deny rule in your permission settings` | [Tool errors](#file-is-covered-by-a-read-deny-rule) |
247251| `cannot contain null bytes (\0)` | [Tool errors](#path-cannot-contain-null-bytes) |
from line 1791
17871791x-deny-reason: host_not_allowed
17881792```
17891793
1790You may also see a TLS certificate that doesn't match the destination's real certificate. Cloud sessions route outbound traffic through a proxy that enforces the network policy, so a mismatched certificate means the proxy terminated the connection, not the destination.
1791
1792This is not a client-side network problem. Cloud sessions and [routines](/docs/en/routines) run inside a sandboxed VM whose outbound traffic through the session's network is filtered to the [cloud environment's](/docs/en/cloud-environments) allowlist; [GitHub operations](/docs/en/cloud-environments#github-proxy) and MCP connector traffic use separate channels, which is why they can keep working while other hosts are blocked. The **Default** environment uses **Trusted** access, which permits the [default allowlist](/docs/en/cloud-environments#default-allowed-domains) of package registries, cloud provider APIs, container registries, and common development domains and blocks other domains on that path.
1793
1794**What to do:**
1795
1796These steps change one of your own environments. An [organization-shared environment](/docs/en/cloud-environments#organization-shared-environments) opens read-only in the selector, so ask an Owner to change its network access from the **Cloud environments** page in [admin settings](https://claude.ai/admin-settings).
1797
1798* Open the routine for editing, or start a cloud session. Select the cloud icon showing your environment's name, such as **Default**, to open the selector. Hover over your environment and click the settings icon.
1799* In the **Update cloud environment** dialog, change **Network access** from **Trusted** to **Custom**, then add the blocked domain to **Allowed domains**. Ent
1794You may also see a TLS certificate that doesn't match the destination's real certificate. Cloud sessions route outbou
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