Hmm, I would need to see a bit more of the log, but my guess is you are using a bib file that contains unicode characters (since the problem occurs only when you insert references). Bibtex does not play along very well with unicode. Some would say it does not play at all. If this is the problem, you basically have two options:
1. go over your bib file and change all the "strange" characters (all the characters with diacritic signs, for instance) to their Latex "fakes". For instance an a with acute character becomes {\'a} 2. Alternatively, leave your bib files untouched and switch to a full unicode tex suite, including a bibliography program that understand Unicode. I would recommend the biblatex+biber combination, which is now pretty much supported by lyx (with some preamble code needed, though). To confirm the problem: 1. Check the encoding of your bib file. How to do this depend on the platform you're on. On linux, an easy way (GUI) is to use a text editor like Kate or a ref manager like JabRef. 2. Look into your bib file for the reference that gives you problems, and particularly for the string "Guarantee Program in India" Those two weird characters after India are a telltale of a Unicode problem, I think. It is a Unicode two-byte sequence that bibtex/Latex does not understand and renders as single-byte characters If you can post a fuller version of the log (more context, i.e. more lines before and after the error) and perhaps the reference that gives you troubles, I may be able to help more. Cheers, Stefano On Mon, Mar 26, 2012 at 4:36 PM, Shylock Muyengwa <shylock.muyen...@gmail.com> wrote: > I am using Lyx version 2.03 and bibtex (JabRef). I am writing an article > using the APA style. I am able to insert one reference only (in the entire > document) and whenever I cite an new author, and attempt to view the PDF, I > get an an error message. > > "Package inputech Error: Keyboard character not defined" and the description > reads > [Guarantee Program in India☆}} > > .{\BBCQ} > > You need to provide a definition with \DeclareInputText > > or \DeclareInputMath before using this key.] > > > Any help appreciated > > Thanks > > Shylock Muyengwa | PhD Candidate & Managing Editor > School of Natural Resources & Environment| Center for African Studies > University of Florida P O Box 112100 | Gainesville, FL 32611-2100 > Office 352.273.4751| Fax 352.392.2435|Home352.846.5459| Google 352.575.0160 > Skype shylockmuyengwa > P Before printing this e-mail think if it is necessary. > > -- __________________________________________________ Stefano Franchi Associate Research Professor Department of Hispanic Studies Ph: +1 (979) 845-2125 Texas A&M University Fax: +1 (979) 845-6421 College Station, Texas, USA stef...@tamu.edu http://stefano.cleinias.org