.\APP\keyboard\keyboard.h(4): error C141: syntax error near 'typedef'

This error message indicates that there is a syntax error near the keyword "typedef" in line 4 of the file "keyboard.h" in the "APP" directory.

Possible causes of this error include:

- A missing or misplaced semicolon, comma, or brace in the code preceding the "typedef" keyword.
- A misspelling or incorrect use of a keyword or identifier in the code.
- A conflict between different data types or variable names in the code.
- A problem with the header file or library being included in the code.

To resolve this error, you should carefully review the code in the "keyboard.h" file and check for any syntax errors, typos, or other mistakes. You may also need to review any related source files or libraries to ensure that they are correctly included and referenced in the code.