Why the error sign was showing?

[komomo]

Sometimes, the error sign is showing although my program is correct.
Although I have saved all the changes that make the program correct, that sign is still showing.
I usually spend some time for that error and finally I run the project because I can't find the cause of the error.
Then the project run correctly and that error sign disappear.
Why?

[ektasrv]

Sometimes, the error sign is showing although my program is correct.
Although I have saved all the changes that make the program correct, that sign is still showing.
I usually spend some time for that error and finally I run the project because I can't find the cause of the error.
Then the project run correctly and that error sign disappear.
Why?

Which IDE you use ?
Try to refresh all files, save your editing - then clean & build -- to remove the errors.
Sometime these errors are shown - while they do not exist anymore on ide - because of cached files, so Clean & Build will always help to get rid of these.

[rahulvala]

the error sign is showing although my program is correct.

May be your IDE showing previous error.

So, clean and build up again. Or restart.

Regards,
Rahul

[grahamhughes]

If you're using eclipse, use Project, Clean to force the project to rebuild.

Graham.