lang And Lang-Xx Template Errors

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This category is used only by Module:Lang.

At the time of this writing (2017-11-07) Module:Lang is in development to consolidate the processing of {{lang}} and the many {{lang-xx}} templates. As part of that, the module emits the error messages defined here:

for {{lang}}
unknown language code: – where is the IETF language tag specified in parameter {{{1}}}; this error message indicates that the code is malformed or not listed in the module's data set. The old version of {{lang}} would accept non-standard codes; this version will not; you must use a valid IETF language tag.
unknown language code: missing – {{{1}}} is empty; this parameter is required
no text – {{{2}}} is empty; this parameter is required
text has italic markup – this error message currently disabled – {{{2}}} has italic markup; use |italic= to control italics in the rendering; accepted parameter values are yes and no; default is no; in general, only Latin script should be italicized; see §italic markup errors