what means error LNK2019: unresolved external symbol _bind@
compiling my C code in visual studio I had the folowing errors
error LNK2019: unresolved external symbol _listen@8 referenced in function X
error LNK2019: unresolved external symbol _bind@12 referenced in function Y
error LNK2019: unresolved external symbol _setsockopt@20 referenced in function X
error LNK2019: unresolved external symbol _WSAGetLastError@0 referenced in function X
error LNK2019: unresolved external symbol _socket@12 referenced in function X
To solve this I added a new dependencie in my project in properties -> linker -> Input -> Additional Dependencies and I added ws2_32.lib, in this library are things related to windows sockets.
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i also had this error number.
i was writing some C code snippets, but i was trying to compile it without a main(){}. my bad.
add in source cod this command
#pragma comment(lib, “ws2_32.lib”)