# Hail import vcf problem

**URL:** <https://discuss.hail.is/t/hail-import-vcf-problem/2340>\
**Category:** Hail Query & hailctl\
**Created:** [November 10, 2021, 10:02pm UTC](https://discuss.hail.is/t/hail-import-vcf-problem/2340 "2021-11-10T22:02:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![zhouhufeng](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.hail.is/zhouhufeng/32/535_2.png) [@zhouhufeng](https://discuss.hail.is/u/zhouhufeng)\
**Post date:** [November 10, 2021, 10:02pm UTC](https://discuss.hail.is/t/hail-import-vcf-problem/2340/1 "2021-11-10T22:02:21Z")

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I am import the new VCF file from GLnexus and create the MatrixTable,  
and encounter the error as below,  
I am wondering what I need to do with the following error?

```auto
> Hail version: 0.2.78-b17627756568
> 
> Error summary: VCFParseError: missing value in FORMAT array. Import with argument 'array_elements_required=False'
> 
> **ERROR:** (gcloud.dataproc.jobs.submit.pyspark) Job [46f3042082c94fb880d9e41e7b5298cd] failed with error:
> 
> Google Cloud Dataproc Agent reports job failure.

```

---

<div class="post-metadata">

**Author:** ![johnc1231](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.hail.is/johnc1231/32/286_2.png) [@johnc1231](https://discuss.hail.is/u/johnc1231)\
**Post date:** [November 15, 2021, 2:40pm UTC](https://discuss.hail.is/t/hail-import-vcf-problem/2340/2 "2021-11-15T14:40:56Z")

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This error is telling you that the VCF you’re trying to read has a missing value in the FORMAT array. You can try using the `array_elements_required=False` argument like it suggests if that’s expected. If that’s unexpected, you should track down the source of the missing value in your VCF file.