[igraph] error in reading file

[anupam sinha]

Hi 
    I am using the following command to read an edgelist graph :

g<-read.graph("/home/anupam/Anupam_data/programs_1/pronew", format=c("edgelist"))

but it gives the following error :

Error in read.graph.edgelist(file, ...) : 
  At foreign.c:95 : parsing edgelist file failed, Parse error

Can someone tell me whats happening ??

Regards,

Anupam Sinha