Why do I get the error message "System target file 'speedgoat.tlc' cannot be found"?
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Why do I get the following error message when I try to build my Simulink Real-Time model for Speedgoat hardware?
System target file 'speedgoat.tlc' cannot be found
Accepted Answer
MathWorks Support Team
on 2 Mar 2026 at 0:00
Edited: MathWorks Support Team
on 2 Mar 2026 at 12:33
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In R2024a and later, Simulink Real-Time (SLRT) uses the 'speedgoat.tlc' system target file that ships as part of the 'Speedgoat I/O Blockset'. This means that building a real-time application MLDATX files is no longer possible without a Speedgoat I/O Blockset installation.
In R2023b and prior, SLRT uses the 'slrealtime.tlc' system target file, which is already included as part of the SLRT product installation.
To resolve this, install the 'Speedgoat I/O Blockset', which is available for download from the Speedgoat customer portal: https://www.speedgoat.com/login/
In R2025b and earlier, you might also be prompted to install the 'Simulink Real-Time Target Support Package' during the Speedgoat I/O Blockset installation if you haven't installed it yet from the MATLAB Add-On Explorer.
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on 15 Jul 2024
on 2 Mar 2026 at 12:33
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