Need help installing library(real)

Dear Nicos,

I try to install real 2.1 on SWI 8.2.2 under Windows10.
R version is : R x64 4.0.3
Installation and test_real are OK

but I rapidely have problems with basic R functions :

The complete for_real file runs quite good until :

I tried to revert to an older SWI version, but unfortunately I can’t restore a state where SWI and R work together. ( pack_rebuild doesn’t work in my environement).

I hope that you may have time to fix this problem (I am rearly blocked with this issue).

Thank you very much in advance

JAB