AR# 69377


2017.3 Licensing - Floating License Server Checkout Error When Using Vivado 2017.3


I am using a floating license server for my licenses.

In Vivado 2017.3 I can no longer check out licenses, even though I was able to do this in older versions.

ERROR: [Common 17-345] A valid license was not found for feature 'Synthesis' and/or device 'xxxxx'. Please run the Vivado License Manager for assistance in determining which features and devices are licensed for your system.
Resolution: Check the status of your licenses in the Vivado License Manager. For debug help search Xilinx Support for "Licensing FAQ".


Vivado 2017.3 now uses FlexLM, which older floating server machines cannot provide licenses to unless the license utilities version matches or is newer.

Floating license users must upgrade their license utilities in order for licenses to be picked up in Vivado 2017.3.

You can obtain these utilities on the downloads page (

Note: The license utilities require that the machine have the 2015 Microsoft Redistributables installed before running (this is already included if Vivado 2017.3 is installed).

See (Xilinx Answer 69504) for further details.

Linked Answer Records

Associated Answer Records

Answer Number Answer Title Version Found Version Resolved
69504 2017.3 Licensing - The program can't start because VCRUNTIME140.dll is missing from your computer. N/A N/A
AR# 69377
Date 10/17/2017
Status Active
Type Known Issues
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