The tornado compiler prompts "undefined reference ......" Problem

The compiler prompts the following error message:

 

Partialimage. O: In function 'getsipparacfg ':
Partialimage. O (. Text + 0x1a5c8): Undefined reference to 'function1'
Partialimage. O (. Text + 0x1a5fc): Undefined reference to 'function2'
Partialimage. O (. Text + 0x1a624): Undefined reference to 'function3'
Partialimage. O (. Text + 0x1a62c): Undefined reference to 'function4'
Partialimage. O (. Text + 0x1a640): Undefined reference to 'function5'
Make: *** [VxWorks] error 0x1

 

Cause of error: The. A or. o file cannot be found during compiler link.

Solution: Right-click the project and select Properties. In the Properties window of the displayed project, select the macros tab and add the corresponding. A or. O module to extra_modules.

Cause Analysis: References other people's function interfaces and does not add external modules provided by others