Error in Builder v1.0

I get this error message every once and awhile what does it mean??? Usually I have to go back to a backup and start from there, but why??
[Linker Error] Unresolved external'__errno()'referenced from
c:\windows\desktop\my programs\2 b a webmaster\webmaster.obj.

I am using Borland C++ Builder v1.0 what went wrong???
4099aolAsked:
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nietodCommented:
Backup of what?  Your source code or the project?
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4099aolAuthor Commented:
I backup everything that is in my project's folder (I create a folder for each program that I make and make a complete backup of that folder every night)
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cphCommented:
Hi,

Try to rebuild the whole project again, may be something went wrong...
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shogiCommented:
Very old problem, with borland.. sometime for some reason (generaly, when you had a crash) Borland put some bad bytes in the project or intermediate file.  Two solution :
First, try to delete all intermediate file, .obj, .exe And recompile.
Second, if it not working you have to rebuild your project (first delete it)...


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4099aolAuthor Commented:
thanks I will remember that.
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