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µVISION: error: unknown type name


Information in this knowledgebase article applies to:

  • MDK 5
  • Arm Compiler 6

SYMPTOM

My project is configured for Arm Compiler 6. 

Despite the project build results in 0 Error (s) - 0 Warning (s),  µVision's Dynamic Syntax Checking reports an error in a header file:

error: unknown type name ...

CAUSE

µVision's Dynamic Syntax Checking currently has two shortcomings for header files:

  • The header files are analyzed like a separate C source file. Definitions may be missing which usually come from other header files that are included in the C/C++ file before.
  • The header files are always analyzed as a C and not as a C++ file, even if they depend on a *.cpp file.

Because of these known issues, errors may be reported by Dynamic Syntax Checking by mistake.

MORE INFORMATION

Last Reviewed: Wednesday, September 11, 2019


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