I am receiving the above error when trying to compile a LaTeX document in emacs 24.5, using auctex 11.89.3. Previously, I would get either "Run LaTeX again", or "Compiled successfully". This happened after I updated some packages yesterday, and I am unable to fix it. I did not pay attention to which packages were updated, and I also deleted the obsolete packages immediately, so I do not know what is causing this. Any suggestions?
The error you reported was probably triggered by having
TeX-error-overview-open-after-TeX-run set to non-nil and
TeX-debug-bad-boxes set to nil.
This should be fixed now in development version of AUCTeX: http://git.savannah.gnu.org/gitweb/?p=auctex.git;a=commitdiff;h=88fbf8021c7da3c2bf14a646663bd0eb0ccc1448 It'll go live in next ELPA release. If you want to keep
TeX-error-overview-open-after-TeX-run set to non-nil, as a workaround (but I find this a good practice in general) you can activate parsing of warnings and bad-boxes:
(setq TeX-debug-warnings t TeX-debug-bad-boxes t)
Background on the origin of the error: in AUCTeX 11.89.3 has been introduced the possibility to ignore certain warnings that can be considered too noisy. This is controlled by two options:
TeX-ignore-warnings: this controls which warnings should be ignored (usually it's a regexp)
TeX-suppress-ignored-warnings: this tells AUCTeX whether to actually ignore those warnings.
In this way one can interactively toggle visibility of ignored warnings with x in TeX error overview (and toggle visibility of all warnings and bad-boxes with w and b, respectively), but this also requires building of the error/warning list to be shown on-the-fly. Instead, before the fix mentioned above TeX sentinels were looking to the static full list of errors and warnings.