KNOWLEDGE BASE

Error Viewing Dashboard When Testing Upgrade Server


Published: 13 Nov 2019
Last Modified Date: 15 Nov 2019

Issue

The "Unexpected Server Error" message shown below occurs when trying to view a dashboard on Tableau Server.

"Tableau Exception : Unexpected Error -- <Install Drive Letter>:\tc\builds\t192\t192.19.0917.1648\modules\server\tabvizqlserver\main\server\ServerImageCacheData.cpp: 91"                                

Users may also be unable to publish to Tableau Server from Tableau Desktop, sometimes resulting in an "HTTP Bad Request" error.

Environment

  • Tableau Server 2019.2

Resolution

Verify permissions to the Tableau Server folders for all users requiring access. For more information, see Verify Folder Permissions.

Cause

Tableau Server is unable to read or write to system folders necessary for the rendering of visualizations, workbooks, and dashboards.
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