[OTTO-2667] Add CLI error message

[joan-ing]

Closes #

Summary

Doc Page Title - <Enter a one sentence summation of the pertinent changes (including not-yet-completed work) provided by this PR.>

Effect

The following changes are already committed:

Remaining Work and Prerequisites

The following changes still need to be completed:

• [ ] List any outstanding work here

Dependencies and Timing

• [ ] Other prerequisites that must be completed before merging this PR

Release:

• [ ] When ready
• [ ] After date: $DATE

---

Post Launch

Do not remove - To be completed by the docs team upon merge:

• [ ] Redirect /docs/old-path/ => /docs/new-path/ (if applicable)
• [ ] Include/exclude pages ^ respectively within docs search service provider (if applicable)
• [ ] For Heroes - add a props post to the discussion board.
• [ ] Remove from the project board

[pantheondocs]

Lighthouse Audit Results:

Description	Live	pr-7289	Difference
Performance Score	51	52	1
Best Practice Score	86	86	0
SEO Score	96	96	0
Accessibility Score	98	98	0

Lighthouse Audit Reports:

• pr-7289 HTML Report
• Pantheon Docs HTML Report

Preview Environment

[joan-ing]

lgtm