Error: File: C:\VeriSta​nd\2020\Mo​delInterfa​ce\tmw\cod​egen\NiBus​Lib.tlc Line: 134 Column: 17 The left-hand side of a . operator must be a valid scope identifier

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Jongcheol Han
Jongcheol Han 2020-8-4
回答： Shuba Nandini 2024-11-11，8:24
Hi all,
I am interfacing NI Veristand and NI linux RT with matlab 2020a. When i develop a model in simulink and build the model, it is giving following error.
"Error: File: C:\VeriStand\2020\ModelInterface\tmw\codegen\NiBusLib.tlc Line: 134 Column: 17 The left-hand side of a . operator must be a valid scope identifier"
please give a solution.
Thank you.

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回答（1 个）

Shuba Nandini
Shuba Nandini 2024-11-11，8:24
Hello @Jongcheol Han,
It seems like you are encountering an error "The left-hand side of a . operator must be a valid scope identifier" while you are building a model in Simulink.
This error may occur because MATLAB is referencing auto-generated files from a previous build of the same model in the working directory.
Kindly follow the below workarounds to troubleshoot the issue:
  • Clear Old Generated Files: The files may not be deleted or regenerated after modifications in the test harness configurations, leading to conflicts. To resolve this, manually delete all auto-generated files in the working directory before attempting a new build. This will force MATLAB to regenerate files from scratch, eliminating the potential for conflicts.
  • Create a New Model if Corruption is Suspected: If the model built successfully before but is now encountering errors, the issue may stem from model corruption. In this case, copy the contents of the top-level model into a new model file, reconfigure the Model Configuration Parameters, and attempt to build again. This step can help bypass issues introduced by model corruption.
  • Confirm the Correct System Target File is Selected: If the 'ASAP2 interface' option is checked, same error may arise. To resolve this, ensure the System Target File is set to grt.tlc or ert.tlc rather than Autosar.tlc.
I hope the above provided workarounds will resolve the issue!

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