Open hmenke opened 6 years ago
Thanks. Is this error particular to this equation? (I.e., do you use layout=L for other equations without trouble?)
BTW when you see
! Undefined control sequence. \eq@measure ...al \eq@failout \endgroup \EQ@trial
this means that \EQ@trial only is undefined. So you could describe this simply as "Undefined control sequence (\EQ@trial)” or similar.
The error is quite specific to this equation. It disappears if you remove stuff, e.g. \left(...\right)
. Here is the reference question on TeX.SX which I was answering when I found this bug: https://tex.stackexchange.com/questions/443103
I turned on debugging mode and breqn claims it can’t find a satisfactory solution using layout=L. My question here would be: if a specific layout is requested but not possible, should it just produce a sensible error message? My feeling is yes…
The following example fails in TeX Live 2018 with a irrecoverable error, i.e. no PDF is produced. It works if you comment out the last line of the equation.