GEOS is not available, but is required for correct interpretation of polygons in shapefiles in rails console on OS X

[wuliwong]

When I attempt:

I am running:

os-x "High Sierra" 10.13.2
ruby 2.4.0p0
ruby on rails (5.1.1)
rgeo-shapefile (0.2.3)
dbf (3.1.1)
rgeo (1.0.0)
geos (3.6.2) which installed via brew install geos

In a rails console when I run the example

require 'rgeo/shapefile'

RGeo::Shapefile::Reader.open('my_shapefile.shp') do |file|
  puts "File contains #{file.num_records} records."
  file.each do |record|
    puts "Record number #{record.index}:"
    puts "  Geometry: #{record.geometry.as_text}"
    puts "  Attributes: #{record.attributes.inspect}"
  end
  file.rewind
  record = file.next
  puts "First record geometry was: #{record.geometry.as_text}"
end

I receive the output

File contains 83 records.
RGeo::Error::RGeoError: GEOS is not available, but is required for correct interpretation of polygons in shapefiles.

'my_shapefile.shp' was a Zillow neighborhood file for Georgia.

Additional note is if I open irb in a directory other than this rails app and run:

require 'rgeo'
RGeo::Geos.supported?

it returns true

Running the same commands in irb inside the rails app root directory returns false.

[wuliwong]

I was able to solve the problem by uninstalling rgeo then running

ARCHFLAGS="-arch x86_64" gem install rgeo

[teeparham]

Seems like this is fixed.