Error in `make_family_id(id, fid, mid)`: object '_networkR_make_family_id' not found

context("trios - functions for handling id, fid, mid trio information")
## Check output is correct and has not changed
expect_equal(make_family_id(id, fid, mid), c(1L, 1L, 1L, 1L))
res <- make_parental_chain(id, fid, mid)
expect_error(validate_trio_consistency(id, fid, mid), "some individuals")
expect_error(validate_trio_consistency(id, fid, mid, sex), "some individuals")
expect_equal(validate_trio_consistency(id, fid, mid, sex), TRUE)

"trios - functions for handling id, fid, mid trio information"

Error in `make_parental_chain(id, fid, mid)`: object '_networkR_make_parental_chain' not found