Help: CS1 errors

===<span id="bare_url_missing_title">Bare URL without a title</span>===
<section begin="bare_url_missing_title_help_text" />{{help desk}}{{#invoke:Cs1 documentation support|help_text_error_messages|err_bare_url_missing_title|$1=<code class="cs1-code">{{pipe}}&lt;param>=</code>}}

All {{cs1}} and {{cs2}} templates report this error when one of the [[URL]]-containing parameters cannot be paired with an associated title. This error may also occur when {{para|title}} cannot be linked with {{para|url}} because the citation also contains a conflicting {{para|title-link}} parameter.

{|class="wikitable"
|+ URL-containing parameters and associated title parameters
|-
! URL parameters
! Title parameters
|-
| {{para|archive-url}}
| {{para|title}}
|-
| {{para|article-url}}
| {{para|article}}, {{para|chapter}}, {{para|contribution}}, {{para|entry}}, {{para|section}}
|-
| {{para|chapter-url}}
| {{para|chapter}}, {{para|article}}, {{para|contribution}}, {{para|entry}}, {{para|section}}
|-
| {{para|conference-url}}
| {{para|conference}}, {{para|event}}
|-
| {{para|contribution-url}}
| {{para|contribution}}, {{para|chapter}}, {{para|article}}, {{para|entry}}, {{para|section}}
|-
| {{para|entry-url}}
| {{para|entry}}, {{para|chapter}}, {{para|article}}, {{para|contribution}}, {{para|section}}
|-
| {{para|event-url}}
| {{para|event}}, {{para|conference}}
<!-- |-
| {{para|lay-url}}
| &nbsp;&nbsp;({{para|lay-source}}) -->
|-
| {{para|map-url}}
| {{para|map}}
|-
| {{para|section-url}}
| {{para|section}}, {{para|chapter}}, {{para|article}}, {{para|contribution}}, {{para|entry}}
|-
| {{para|transcript-url}}
| {{para|transcript}}
|-
| {{para|url}}
| {{para|title}}
|}

A unique case exists for {{tl|cite journal}}: if {{para|pmc}} or {{para|doi}} has a value, {{para|url}} is omitted or empty, and {{para|title-link}} does not point to an article, then {{para|title}} is automatically linked with the same URL as the PMC or DOI. This default behaviour can be overridden using {{para|title-link|none/pmc/doi}}.

Because URLs are ugly and generally uninformative, it is expected that editors should provide a meaningful title for each URL. In most cases this can be accomplished by using the {{para|title}} parameter.

To resolve this error, provide an appropriate title for the URL-containing parameter. In the case where {{para|url}} and {{para|title-link}} are contending for {{para|title}} you must choose which one to keep. Consider moving {{para|url}} or {{para|title-link}} to a more suitable parameter.

Pages with this error are automatically placed in {{#invoke:cs1 documentation support|help_text_cats|err_bare_url_missing_title|pages=yes}}.<ref group="lower-alpha" name="categories" /><section end="bare_url_missing_title_help_text" />