File ‘tynding/libs/tynding.so’:
  Found non-API calls to R: ‘R_MissingArg’, ‘R_UnboundValue’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.
installed size is 47.9Mb
  sub-directories of 1Mb or more:
    libs  47.8Mb
Installation failed.
See 'd:/Rcompile/CRANpkg/local/4.4/tynding.Rcheck/00install.out' for details.