vcf to ped conversion

[vmrosario]

I'm trying to convert vcf files to ped files, but I get a weird error.

I execute:

vcftools --gzvcf chr23.phase1_release_v3.20101123.snps_indels_svs.genotypes.refpanel.EUR.nosingles.vcf.gz --chr X --plink --out chr23

And I get the following error:

Using zlib version: 1.2.3
Versions of zlib >= 1.2.4 will be *much* faster when reading zipped VCF files.
Reading Index file.
File contains 406938 entries and 379 individuals.
Filtering by chromosome.
terminate called after throwing an instance of 'std::bad_alloc'
  what():  St9bad_alloc
Aborted

Has anyone ever seen this error? How can I convert my file to ped format?