Your search +path:opt +path:zephyr-sdk-0 +path:. +path:10 +path:. +path:3 +path:nios2-zephyr-elf +path:nios2-zephyr-elf +path:include did not match any files.
Suggestions:

• Make sure all terms are spelled correctly.
• Try different keywords.
• Try more general keywords.
• Use 'wil*' cards if you are looking for partial match.