EXEC : warning : License C************************* is a trial license

EXEC : warning : License C************************* is a trial license

Posted by: wbennett on 12 February 2026, 11:59 am EST

• 

  wbennett

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  Posted 12 February 2026, 11:59 am EST - Updated 12 February 2026, 12:04 pm EST

  Hello, I’m getting the following error when trying to build my project. Here’s the Built output log (only the license # is redacted:

  1>Build started 2/12/2026 9:51:22 AM.
  
  1>Target SA3Tool-install:
  
  1> SA3Client1.2.0
  
  1> Package ID Latest Version Authors Downloads Verified
  
  1> --------------------------------------------------------------------------
  
  1> sa3client 1.2.0 sa3client 9738
  
  1>Target ApplyLicenseFor-c5bb0312-acb6-46b4-9748-9c15cad46228:
  
  1> Product ‘ComponentOne (C1S)’ added.
  
  1> Product ‘ComponentOne (C1P)’ added.
  
  1> Starting license compilation…
  
  1> Searching for a license for ‘C1S,C1P(2024.2.0.0-)’.
  
  1> EXEC : warning : License C************************* is a trial license.
  
  1> Compiling license: C*************************
  
  1> Finished compiling licenses.
  
  1>Done building target “ApplyLicenseFor-c5bb0312-acb6-46b4-9748-9c15cad46228” in project “IFD Core.csproj”.
  
  1>Target ApplyLicenseFor-26d69fd8-8a6f-409b-9594-7c2016d61e5b-WF:
  
  1> Product ‘ComponentOne (C1S)’ added.
  
  1> Product ‘ComponentOne (C1P)’ added.
  
  1> Starting license compilation…
  
  1> Searching for a license for ‘C1S,C1P(2024.2.0.0-)’.
  
  1> EXEC : warning : License C************************* is a trial license.
  
  1> Compiling license: C*************************
  
  1> Finished compiling licenses.

  However, I have run Mescius License Manager and activated my product license:
  
  

  

  700×560 17.4 KB

  And then applied that in Tools > Mescius > License Manager within Visual Studio:
  
  

  What am I missing? Please help I’m getting a “nag screen” because of this:
  
  

  

  618×501 14.8 KB

• 

  greg.lutz

  

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  Posted 12 February 2026, 12:25 pm EST

  Hello,

  Today we released an update that includes critical changes to our licensing system, and this requires a simple reactivation of your key. Please see here:

  2025 v2.1 Maintenance Release Notes: https://developer.mescius.com/forums/c1-studio/c1-2025-v2-1-maintenance-release-with-licensing-changes

  Link to reactivation instructions: https://developer.mescius.com/componentone/docs/license/online-license/activating-serial-key#reactivate-a-serial-key-using-the-c1controlpanel

  Regards,
  
  Greg

• 

  wbennett

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  Posted 12 February 2026, 3:07 pm EST - Updated 12 February 2026, 3:12 pm EST

  

  I got a “contact support” message when I tried to reinstall the latest version of the control panel. Can you help me with this?

• 

  greg.lutz

  

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  Posted 12 February 2026, 3:18 pm EST

  Hello,

  What version of the C1ControlPanel did you run? the version is located in the bottom left corner. Make sure you have version 2.26.1.159 (or later). Without installing any Editions, you can re-activate your key from the License tab on the left.

  Note that the C1ControlPanel needs to be run as administrator.

  You can download the latest version here: https://developer.mescius.com/componentone/download

  Regards,
  
  Greg

• 

  wbennett

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  Posted 12 February 2026, 5:11 pm EST - Updated 12 February 2026, 5:16 pm EST

  First, I have to say that I’m VERY frustrated that the forum software is making me wait an HOUR between posts/replies.

  Yes, I FRESHLY downloaded that today after you told me to. Attached are images of me trying to re-activate it.

  I’ve got the latest version, and I try to do what I’m supposed to do, and error. What else can I do?? It says “Contact Support”, well you’re support, right?

  

  835×71 2.89 KB

  

  1262×745 68.2 KB

  

  

  852×740 40.7 KB

• 

  greg.lutz

  

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  Posted 12 February 2026, 5:32 pm EST

  Hello,

  Please check your email where I sent you a message. Once I take a look at the key, I can tell more about why it won’t activate.

  Thanks
  
  Greg