License File Activation Type Errors

This section is applicable to installations involving a license file activation type. This licensing method is gradually being replaced by the user credentials activation type starting with Thermo‑Calc 2025a.

Issue	Platform	Installation type	Action or link to more information
How do I add or update a standalone (SUNLL) license on a Windows computer where Thermo‑Calc is already installed?	Windows	Standalone	Determining the Current License File Directory Path
How do I add or update a standalone (SUNLL) license on a Linux computer where Thermo‑Calc is already installed?	Linux	Standalone	Determining the Current License File Directory Path
How do I add or update a network license on Windows?	Windows	Network	Determining the Current License File Directory Path
How do I add or update a network license on Linux?	Linux	Network	Determining the Current License File Directory Path
No license file found. Copy a valid license file to the installation directory after completing the installation.	All	All	You get this message if the wrong path or no license file is found at a path entered during the installation process. See Installation Default Directories and the License File and Determining the Current License File Directory Path
TC-Toolbox for MATLAB®	Windows	All	TC-Toolbox Installation Troubleshooting
Warning Environment variable “LSHOST” is not set. Software will not function properly.	All	Network	Specifying a New Server Name or IP Number
Problem running post-install step. Installation may not complete correctly. Unable to run post-installation script, run the license initialization script as root after the installation.	Linux and Mac	Standalone	macOS Installations: Running the License Initialization Script or Linux Installations: Running the License Initialization Script
Firewall warnings related to license management software (License Manager and License Server)	Windows and Linux	Network	Firewalls
Client / Server naming mismatches	Windows and Linux	Network	Client/Server Mismatch
InstallScript engine missing	Windows	Network	You are not notified if the InstallScript scripting engine is not installed. Install the ISScript.msi file and then run the downloaded file from Thermo‑Calc again as described in Windows: About Installing the License Manager
License initialization warning on a Mac with ARM processor	Mac	Standalone	To install and run Thermo-Calc on a Mac with ARM processor, Rosetta needs to be installed. Cancel any installation in progress, install Rosetta, then start the installation again.