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Alteryx Designer Desktop Knowledge Base

Definitive answers from Designer Desktop experts.

InboundNamedPipe Error when writing out a Tableau .Hyper file

JohnGD
Alteryx
Alteryx
Created

‎03-06-2019 08:30 AM - edited ‎07-22-2021 12:39 PM

Issue

When writing out data to a .hyper file (using the Output Tool or the Publish To Tableau Server Tool), the Alteryx Designer throws the following error :

Designer x64 The Designer x64 reported: InboundNamedPipe::ReadFile: Not enough bytes read. The pipe has been ended

Environment

Cause

This error is triggered whentrying to load a standard string (V_string or String) that contains extended ASCII characters 128-255into a Tableau Hyper file.Tableau only supports valid UTF8 strings.

This can be verifiedby converting the strings to UTF8 with the ConverToCodePage function using a Formula tool:

Capture1.PNG

Capture2.PNG

Solution

  1. Strip the extended ASCII characters using a Data Cleansing tool.
  2. Convert all "String" or "V_string" to "V_WString" or "WString" using the Select tool.

Solution B

  1. Upgrade to Alteryx Designer ≥2018.3.

Solution C

  1. If all the above did not solve the issue, please open a support ticket in the Case Portal.
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