Dear all,

Using the latest CRAN version of lme4 I get the following warning from lmer() :

Warning message: 
In mer_finalize(ans) : singular convergence (7)

My model is not complicated and it works fine with SAS (if you are interested in the details of my model see forums.cirad.fr/logiciel-R/viewtopic.php?t=5071 )

What argument could I change in lmer() to overcome this warning ?

Kind regards,
SL

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