unresolved externals?!?

geekybear

Senior member
Oct 4, 2001
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have the following error message while using visual c++:

Debug/implementation.exe : fatal error LNK1120: 1 unresolved externals

wtf is an unresolved external?

am also getting this error message:

implementation.obj : error LNK2001: unresolved external symbol "public: unsigned int __thiscall main_savitch_3::sequence::size(void)const " (?size@sequence@main_savitch_3@@QBEIXZ)

what does all of this mean? what are some ways I can go about fixing this?