# NovaSeq 6000Dx App Troubleshooting | Failure Type | Action Taken | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Analysis is unable to start, hanging indefinitely after installing another app with incompatible DRAGEN version. For detailed scenario, see: [Analysis Launch with NovaSeq 6000Dx Application](/dragen-tso-500-guides/dragen-tso-500-v2.6/launching-analysis/analysis-launch-with-novaseq-6000dx-application.md) |

The following steps need to be executed by a user with root access to the server that is paired with the NovaSeq 6000Dx:

  1. Locate the DRAGEN .run file on the server

    1. The file should be under the following path with the following name pattern:
      /staging/data/install/dragen/illumina.drageninstaller@{dragen\_version}/dragen-{dragen\_version}..run, where dragen\_version is the version of DRAGEN needed for the application

      1. For example: /staging/data/install/dragen/illumina.drageninstaller\@3.10.19/dragen-3.10.19-11.multi.el8.x86\_64.run

  2. Execute the DRAGEN run file by typing the appropriate command into the server terminal similar to the following:

    1. "./{COMPLETE\_RUN\_FILE\_PATH}/dragen-{dragen\_version}..run
  3. Navigate to the DRAGEN page from the IRM menu to see that the installed version of DRAGEN is as intended. If the version has not updated, navigate away from the DRAGEN page and then return to the DRAGEN page.
| | Same problem as above, but running an app using a lower version of DRAGEN (ie 2.6.0 using DRAGEN 3.10.17) | Same instructions as above | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.tso500software.illumina.com/dragen-tso-500-guides/dragen-tso-500-v2.6/troubleshooting/novaseq-6000dx-app-troubleshooting.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.