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  1. Building Workflows
  2. Nextflow

Nextflow Setup

PreviousOverview of NextflowNextImporting Nf-Core

Last updated 10 months ago

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In order for Nextflow to run correctly on the platform, please do the following:

  1. Install dxpy/ dx-toolkit. Details on how to do this is in the Command Line Interface Section under Introduction to the CLI.

    1. As Nextflow on DNAnexus is being updated with bugfixes and improvements on a regular basis, we recommend updating dxpy to the latest version prior to building your Nextflow applet.

    2. You can upgrade dxpy by using the following

    pip3 install --upgrade dxpy

  2. The version of dxpy that you use controls the version of the DNAnexus Nextflow executor and thus the version of Nextflow that is used for executing your pipeline.

  3. Nextflow and dxpy versions

    1. Most nfcore pipelines require versions of Nextflow starting with '23' and you will need to use a recent version of dxpy

    5. For example an Nextflow applet built using v0.370.2 will have Nextflow version 23.10.0 bundled with it and it will use this version of Nextflow and v0.370.2 of dxpy for executing the Nextflow pipeline on the platform.

Resources

To create a support ticket if there are technical issues:

  1. Go to the Help header (same section where Projects and Tools are) inside the platform

  2. Select "Contact Support"

  3. Fill in the Subject and Message to submit a support ticket.

dxpy versions >= v0.368.1 use Nextflow version 23.10.0
dxpy version >= 0.343.0 and < 0.368.1 use Nextflow version 22.10.7
Nextflow support was initially introduced at dx v0.330.0 and uses a version of Nextflow older than 22.10.7
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