why unresolved inclusion and syntax error exist but still compile ok and function works?

[TonyXiao]

Hi all

i am trying fix bugs of my project, and found something strange.

syntax error.png

unresolved inclusion.png

there are many of such question mark. but do can compile without any errors, and debug and run all works,
can somebody tell me why?

BR,
Tony

[mon2]

https://stackoverflow.com/questions/933 ... ry-headers

The headers / files with question mark are getting resolved. As a test, rename the header reference to a random filename that really does not exist in your filesystem. Then an error should be raised.

[TonyXiao]

Hi mon2

Thanks for your quick reply.
for the unresolved inclusion, i have changed all the head files with obsolute address, then such yellow question mart disappeared.
how about the syntax error? is the same issue?

BR,
Tony