results in many lines of error messages.
I use TFormula in a context where I catch such errors through TFormula.IsValid. So they are a nuisance. The usual ROOT trick of setting gErrorIgnoreLevel to a high-enough level does not work.
The error printed within TFormula can be suppressed by increasing the gErrorIgnoreLevel. The other compilation errors are coming from Cling. @Axel should know if it is possible to suppress them