Why is BibTeX not compatible with author-year citations?
Package natbib Error: Bibliography not compatible with author-year citations. (natbib) Press to continue in numerical citation style. Any clue what’s wrong? Another way this error can arise is if one of your BibTeX entries has no year.
Can you use author year in latex citations?
The natbib package is an extension to LATEX to allow author{year citations along with numerical citations. Standard LATEX permits only numerical, whereas all extensions for author{year prior to the release of natbib in 1993 were limited to just that.
Why is my bibliography not compatible with natbib?
The simplest reason would be that you have a bibitem with the year field missing. A trickier reason is that your bibliography style does not output year information in a way that is parsable by natbib. For example, I was using bibliographystyle {abbrv}, which does not play nicely with natbib.
How to cite articles written in the same year?
Author-Year System: In-Text Citation. If you use two or more articles written by the same author(s) in the same year, you distinguish between the documents in your text and on your references page by using an “a,b,c” system, providing an identifying letter after the year: Toon (1989a) found evidence of . .
Do you need to comment BibTeX-package natbib error?
However, if you use apalike, ieeetr, siam, etc., it implies you use the default bibtex styles, you should comment natbib package; otherwise, you would meet the problems if your bib files contain entries without author/year information. Either way should solve your problem.
How to find out which entry is empty in natbib?
To find out which entry it is, look earlier in the output for a message like Warning–empty year in ABC2019. So check ABC2019. When changing the bibliography style, sometimes natbib is upset because it can’t interpret the data correctly.