Vivado 2014.2: [Chipscope 16-119] Implementing debug core dbg_hub failed. Error: An unknown error has occured during implementing debug cores

[howard.xilinx]

Hi All - During implementation of the design with ILA core netlist insertion, I ran into this "unknown error". I am not sure how to go about resolving this issue, since it is unknown. Any ideas or suggestions would be very much appreciated.

Opt Design:

[Chipscope 16-119] Implementing debug core dbg_hub failed.

ERROR: An unknown error has occured while implementing debug cores in this design.

Thank you!

Howard

[vuppala]

Hi Howard,

If you are using windows, reduce the directory path length and give a try.

Thanks,

Vinay

[vijayak]

Hi,
Are you using supported OS? Please try recreating the project.

[howard.xilinx]

Hi Vinay and Vijay:

Thank you for your feedback.

I am using window 8, and initially I had the problem of a directory path length, as Vinay has suggested. I then copy the project to a different folder right under C directory, to make the path shorter. I then ran into this "unknown error".

If nothing else, I will try Vijay's suggestion of creating a new project.

Thanks,

Howard

[pulim]

Hi,

The issue may occur if the Debug Hub in cache is out-of-sync and needs to be cleared with the following command.

update_ip_catalog clear_ip_cache

Can you try running the above command and check whether it helps?

[howard.xilinx · Accepted solution]

Many thanks Vinay and Vijay both for your ideas and suggestions, I had resolved the issue.

With the initial problem of long path directory under window, I copied the design folder another folder under C to make the directory path shorter. In stead of copying the design folder, I should have  File --> Archive Project.  By Archive Project, the "unknown error" has gone away.

Thanks,

Howard

[vijayak]

Hi,
Thanks for sharing the solution. Please mark your post as solution in the interest of other users.

[murtuzazoeb]

Is this a valid command? It fails to run at my end.

update_ip_catalog clear_ip_cache

Also regarding the failure above with "unknown error", using all the suggested solution above did not help. The problem got resolved when I added the header file "`include "cs_ver_inc.v"" to the top level design.