[Rcpp-devel] Another 'Error: not compatible with requested type'

[Fabio Tordini]

Hello,
I already read the discussion about the issue in object, but I can't 
find a way out!

That problem came out all of a sudden, in a function that has always 
worked and has not been modified so far.

I describe the problem here. if more code might help, I'll provide it.


I have an R function named 'NormaliseEdges', where I set up variables 
and objects and then call:
retEdges <- runNormalisation(miniEdges, fileSAM, numWrks, edgesProb, grain)

the function called is a c++ function defined as:
// [[Rcpp::export]]
SEXP runNormalisation(DataFrame mEd, std::string samfile, int nwrks, 
float e_lm, int chunk)

never had any problems with that.

today it started to crash with the above error.
Weirdly, this happens only when I call the R function, like:
NormaliseEdges(g.Edges, file.SAM)
Error: not compatible with requested type
Called from: runNormalisation(miniEdges, fileSAM, numWrks, edgesProb, grain)

if I simply call the c++ function it works fine
retEdges <- runNormalisation(miniEdges, file.SAM, 1, 0, 0)

I double-checked that 'miniEdges' is a data.frame (and it is); also, it 
has always been.


I fear this might have something to do with other modifications in other 
files, that somehow affected the whole? is it possible?
I don't see any other error!


Regards,
Fabio