File ‘IP/libs/IP.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’
This entry point may be removed soon.

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.
File ‘IP/libs/IP.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’
This entry point may be removed soon.

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.
File ‘IP/libs/IP.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’
This entry point may be removed soon.

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.
File ‘IP/libs/IP.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’
This entry point may be removed soon.

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.
File ‘IP/libs/IP.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’
This entry point may be removed soon.

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.
File 'IP/libs/x64/IP.dll':
  Found non-API call to R: 'Rf_findVarInFrame'
This entry point may be removed soon.

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.
File ‘IP/libs/IP.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’
This entry point may be removed soon.

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.