[R-sig-Geo] error in reading shapefile

[Rodrigo Plei]

Dear all,

I am getting the following error message when I try to open a shapefile
using maptools:

"Error in .shp2LinesDF(Map, proj4string = proj4string, delete_null_obj =
delete_null_obj) :
  not an arc or poly Map object"

How I can sort this out (if tthis is possible)?

Regards,

Rodrigo

-- 
=8-->=8-->=8-->=8-->=8-->=8-->=8-->=8-->=8-->=8-->=8-->=8-->

Prof. Dr. Rodrigo Silvestre Martins

Universidade Federal de São Paulo
Departamento de Ciências do Mar
Campus Baixada Santista
Avenida Almirante Saldanha da Gama, 89
Ponta da Praia, 11030400 - Santos, SP - Brasil
Tel: + 55 13 3878-3965

http://www.unifesp.br/campus/san7/inicio-imar
<http://www.imar.unifesp.br/v2/>

Email: rodrigo.plei at gmail.com ; ocersm at lycos.com; rsmartins at usp.br;
rsmartins at unifesp.br
CV Lattes: http://lattes.cnpq.br/5350064124902777
Google Scholar:
http://scholar.google.com.br/citations?user=zX_EezEAAAAJ&hl=pt-BR
Research Gate: https://www.researchgate.net/profile/Rodrigo_Martins6/
<https://www.researchgate.net/profile/Rodrigo_Martins6/?ev=hdr_xprf>

	[[alternative HTML version deleted]]