Libreadstat not defined when using read_dta from Pkg ReadStat

General Usage
1

Hi all,

I’m experiencing the following error when trying to import a dataset from Stata:

UndefVarError: libreadstat not defined

My code is the following:

using Pkg, DataFrames, ReadStat
Pkg.add("CSV")
Pkg.add("ReadStat")
Pkg.add("DataFrames")

data = read_dta("/path/to/data/data.dta");

Apparently, the problem comes from the definition of the function Parser:

function read_data_file(filename::AbstractString, filetype::Val)
    # initialize ds
    ds = ReadStatDataFrame()
    # initialize parser
    parser = Parser()
    # parse
    parse_data_file!(ds, parser, filename, filetype)
    # return dataframe instead of ReadStatDataFrame
    return ds
end

function Parser()
    parser = ccall((:readstat_parser_init, libreadstat), Ptr{Nothing}, ())
    info_fxn = @cfunction(handle_info!, Cint, (Cint, Cint, Ptr{ReadStatDataFrame}))
    meta_fxn = @cfunction(handle_metadata!, Cint, (Ptr{Nothing}, Ptr{ReadStatDataFrame}))
    var_fxn = @cfunction(handle_variable!, Cint, (Cint, Ptr{Nothing}, Cstring,  Ptr{ReadStatDataFrame}))
    val_fxn = @cfunction(handle_value!, Cint, (Cint, Ptr{Nothing}, ReadStatValue, Ptr{ReadStatDataFrame}))
    label_fxn = @cfunction(handle_value_label!, Cint, (Cstring, Value, Cstring, Ptr{ReadStatDataFrame}))
    ccall((:readstat_set_metadata_handler, libreadstat), Int, (Ptr{Nothing}, Ptr{Nothing}), parser, meta_fxn)
    ccall((:readstat_set_variable_handler, libreadstat), Int, (Ptr{Nothing}, Ptr{Nothing}), parser, var_fxn)
    ccall((:readstat_set_value_handler, libreadstat), Int, (Ptr{Nothing}, Ptr{Nothing}), parser, val_fxn)
    ccall((:readstat_set_value_label_handler, libreadstat), Int, (Ptr{Nothing}, Ptr{Nothing}), parser, label_fxn)
    return parser
end

I already tried saving the Stata file into an older version (e.g., version 12 or 13) and importing it again.

Any help on this would be much appreciated!