hello -
the package seems to be missing the bibtex database files, e.g. \bibliography{Ch_03_Ex_Sol}
Running `BibTeX' on `Ch_03' with ``bibtex Ch_03''
This is BibTeX, Version 0.99d (TeX Live 2016)
The top-level auxiliary file: Ch_03.aux
The style file: ECA_jasa.bst
I couldn't open database file Ch_03_Ex_Sol.bib
---line 43 of file Ch_03.aux
: \bibdata{Ch_03_Ex_Sol
: }
I'm skipping whatever remains of this command
I found no database files---while reading file Ch_03.aux
Warning--I didn't find a database entry for "yeo2000new"
Warning--I didn't find a database entry for "Hornik:2006tv"
Warning--I didn't find a database entry for "Mente:2005vb"
Warning--I didn't find a database entry for "Cerdeira2014"
(There were 2 error messages)
TeX Output exited abnormally with code 2 at Fri Feb 17 17:48:53
hello - the package seems to be missing the bibtex database files, e.g.
\bibliography{Ch_03_Ex_Sol}