porting from VC6 to C51

"I tried to look at the source code at the error line but see nothing wrong."

The error's in a header file - so it's most likely to be a missing or incorrect definition (eg, typedef or #define) some where before where the first error is reported.

Are you sure that you have all the command-line defines correct?

Try Andy's Handy Hint for Debugging Preprocessor Problems
- Examine the preprocessor output:

http://www.8052.com/forum/read.phtml?id=29152

Note that the preprocessor listing is a valid 'C' source file. Try compiling it - then you will get error messages that relate directly to the source as the compiler sees it - without any preprocessor obfuscation...

"I tried to look at the source code at the error line but see nothing wrong."

The error's in a header file - so it's most likely to be a missing or incorrect definition (eg, typedef or #define) some where before where the first error is reported.

Are you sure that you have all the command-line defines correct?

Try Andy's Handy Hint for Debugging Preprocessor Problems
- Examine the preprocessor output:

http://www.8052.com/forum/read.phtml?id=29152

Note that the preprocessor listing is a valid 'C' source file. Try compiling it - then you will get error messages that relate directly to the source as the compiler sees it - without any preprocessor obfuscation...

"Try Andy's Handy Hint for Debugging Preprocessor Problems - Examine the preprocessor output"

Here is the Keil Manual page regarding the preprocessor listing:

http://www.keil.com/support/man/docs/c51/c51_cm_ifile.htm