Visual C++ linker errors when installing

geajack commented 5 years ago

The readme currently just says to just run pip install pypcap. However, under Windows 7, it's not that simple. The first thing I had to do was find out I had to install this stuff (not mentioned anywhere in the readme - really the state of the docs should be in a separate issue thread, but I need to go through my hacky installation process incase it's what's causing the main issue). I looked at setup.py to figure out where to put these files and then ran python -m pip install pypcap. This got me past the pcap.h errors, but now I was told I needed to install VC++ for Python (Also not mentioned in the readme!! Cmon guys, surely that's an obvious one?). So I installed that, from here.

When I now run python -m pip install pypcap, I get flooded with linker errors:

Collecting pypcap
  Using cached https://files.pythonhosted.org/packages/33/21/d1f24d8a93e4e11bf604d77e04080c05ecb0308a5606936a051bd2b2b5da/pypcap-1.2.2.tar.gz
Building wheels for collected packages: pypcap
  Running setup.py bdist_wheel for pypcap ... error
  Complete output from command C:\Anaconda2\python.exe -u -c "import setuptools, tokenize;__file__='c:\\users\\jack\\appdata\\local\\temp\\pip-build-cnyll3\\pypcap\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d c:\users\jack\appdata\local\temp\tmpvl7g19pip-wheel- --python-tag cp27:
  Found pcap headers in C:\Anaconda2\wpdpack\Include\pcap.h
  Found libraries in C:\Anaconda2\wpdpack\Lib\wpcap.lib
  found pcap_setdirection
  found pcap_setnonblock
  found pcap_compile_nopcap function
  found pcap_file function
  running bdist_wheel
  running build
  running build_ext
  building 'pcap' extension
  creating build
  creating build\temp.win-amd64-2.7
  creating build\temp.win-amd64-2.7\Release
  C:\Users\Jack\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\amd64\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -DHAVE_PCAP_SETDIRECTION=1 -DHAVE_PCAP_SETNONBLOCK=1 -DHAVE_PCAP_COMPILE_NOPCAP=1 -DHAVE_PCAP_FILE=1 -IC:\Anaconda2\wpdpack\Include -IC:\Anaconda2\include -IC:\Anaconda2\PC /Tcpcap.c /Fobuild\temp.win-amd64-2.7\Release\pcap.obj -DWIN32 -DWPCAP -D_CRT_SECURE_NO_WARNINGS
  pcap.c
  pcap.c(3242) : warning C4013: 'pcap_set_immediate_mode' undefined; assuming extern returning int
  pcap.c(19904) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26219) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26219) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26224) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26224) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26224) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26230) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26239) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26240) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26240) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26240) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26244) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26244) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26244) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26246) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26246) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26246) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26253) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26253) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26253) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26255) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26255) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26255) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26255) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26262) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26262) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26262) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26264) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26264) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26264) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26264) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26264) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26284) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26284) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26284) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26287) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26287) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26287) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26294) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26295) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26295) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26295) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26296) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26296) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26296) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26300) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26300) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26300) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26302) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26302) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26302) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26302) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26309) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26309) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26309) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26311) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26311) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26311) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26318) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26318) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26318) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26320) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26320) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26320) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26320) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26320) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26327) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26327) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26327) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26329) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26329) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26329) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26329) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26336) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26336) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26336) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26338) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26338) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26338) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26338) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26338) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26338) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26345) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26345) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26345) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26347) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26347) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26347) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26347) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26347) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26354) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26354) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26354) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26357) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26357) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26357) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26386) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26391) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26399) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26403) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26408) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  pcap.c(26408) : warning C4197: '__pyx_atomic_int' : top-level volatile in cast is ignored
  C:\Users\Jack\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\amd64\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -DHAVE_PCAP_SETDIRECTION=1 -DHAVE_PCAP_SETNONBLOCK=1 -DHAVE_PCAP_COMPILE_NOPCAP=1 -DHAVE_PCAP_FILE=1 -IC:\Anaconda2\wpdpack\Include -IC:\Anaconda2\include -IC:\Anaconda2\PC /Tcpcap_ex.c /Fobuild\temp.win-amd64-2.7\Release\pcap_ex.obj -DWIN32 -DWPCAP -D_CRT_SECURE_NO_WARNINGS
  pcap_ex.c
  creating build\lib.win-amd64-2.7
  C:\Users\Jack\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\amd64\link.exe /DLL /nologo /INCREMENTAL:NO /LIBPATH:C:\Anaconda2\wpdpack\Lib /LIBPATH:C:\Anaconda2\libs /LIBPATH:C:\Anaconda2\PCbuild\amd64 /LIBPATH:C:\Anaconda2\PC\VS9.0\amd64 wpcap.lib iphlpapi.lib /EXPORT:initpcap build\temp.win-amd64-2.7\Release\pcap.obj build\temp.win-amd64-2.7\Release\pcap_ex.obj /OUT:build\lib.win-amd64-2.7\pcap.pyd /IMPLIB:build\temp.win-amd64-2.7\Release\pcap.lib /MANIFESTFILE:build\temp.win-amd64-2.7\Release\pcap.pyd.manifest
  pcap.obj : warning LNK4197: export 'initpcap' specified multiple times; using first specification
     Creating library build\temp.win-amd64-2.7\Release\pcap.lib and object build\temp.win-amd64-2.7\Release\pcap.exp
  pcap.obj : error LNK2019: unresolved external symbol pcap_freecode referenced in function __pyx_pf_4pcap_3bpf_4__dealloc__
  pcap.obj : error LNK2019: unresolved external symbol pcap_close referenced in function __pyx_pf_4pcap_4pcap_4close
  pcap.obj : error LNK2019: unresolved external symbol bpf_filter referenced in function __pyx_pf_4pcap_3bpf_2filter
  pcap.obj : error LNK2019: unresolved external symbol pcap_snapshot referenced in function __pyx_pf_4pcap_4pcap_7snaplen___get__
  pcap.obj : error LNK2019: unresolved external symbol pcap_datalink referenced in function __pyx_pf_4pcap_4pcap_14datalink
  pcap.obj : error LNK2019: unresolved external symbol pcap_geterr referenced in function __pyx_pf_4pcap_4pcap_26geterr
  pcap.obj : error LNK2019: unresolved external symbol pcap_stats referenced in function __pyx_pf_4pcap_4pcap_28stats
  pcap.obj : error LNK2019: unresolved external symbol pcap_freealldevs referenced in function __pyx_pf_4pcap_4findalldevs
  pcap_ex.obj : error LNK2001: unresolved external symbol pcap_freealldevs
  pcap.obj : error LNK2019: unresolved external symbol pcap_findalldevs referenced in function __pyx_pf_4pcap_4findalldevs
  pcap_ex.obj : error LNK2001: unresolved external symbol pcap_findalldevs
  pcap.obj : error LNK2019: unresolved external symbol pcap_lookupnet referenced in function __pyx_pf_4pcap_6lookupnet
  pcap.obj : error LNK2019: unresolved external symbol pcap_activate referenced in function __pyx_pf_4pcap_4pcap___init__
  pcap.obj : error LNK2019: unresolved external symbol pcap_set_rfmon referenced in function __pyx_pf_4pcap_4pcap___init__
  pcap.obj : error LNK2019: unresolved external symbol pcap_set_immediate_mode referenced in function __pyx_pf_4pcap_4pcap___init__
  pcap.obj : error LNK2019: unresolved external symbol pcap_set_timeout referenced in function __pyx_pf_4pcap_4pcap___init__
  pcap.obj : error LNK2019: unresolved external symbol pcap_set_promisc referenced in function __pyx_pf_4pcap_4pcap___init__
  pcap.obj : error LNK2019: unresolved external symbol pcap_set_snaplen referenced in function __pyx_pf_4pcap_4pcap___init__
  pcap.obj : error LNK2019: unresolved external symbol pcap_create referenced in function __pyx_pf_4pcap_4pcap___init__
  pcap.obj : error LNK2019: unresolved external symbol pcap_open_offline referenced in function __pyx_pf_4pcap_4pcap___init__
  pcap.obj : error LNK2019: unresolved external symbol pcap_setfilter referenced in function __pyx_pf_4pcap_4pcap_6setfilter
  pcap.obj : error LNK2019: unresolved external symbol pcap_compile referenced in function __pyx_pf_4pcap_4pcap_6setfilter
  pcap.obj : error LNK2019: unresolved external symbol pcap_dispatch referenced in function __pyx_pf_4pcap_4pcap_20dispatch
  pcap.obj : error LNK2019: unresolved external symbol pcap_sendpacket referenced in function __pyx_pf_4pcap_4pcap_24sendpacket
  pcap_ex.obj : error LNK2019: unresolved external symbol pcap_setmintocopy referenced in function pcap_ex_immediate
  pcap_ex.obj : error LNK2019: unresolved external symbol pcap_getevent referenced in function pcap_ex_fileno
  pcap_ex.obj : error LNK2019: unresolved external symbol pcap_setdirection referenced in function pcap_ex_setdirection
  pcap_ex.obj : error LNK2019: unresolved external symbol pcap_setnonblock referenced in function pcap_ex_setnonblock
  pcap_ex.obj : error LNK2019: unresolved external symbol pcap_getnonblock referenced in function pcap_ex_getnonblock
  pcap_ex.obj : error LNK2019: unresolved external symbol pcap_next_ex referenced in function pcap_ex_next
  pcap_ex.obj : error LNK2019: unresolved external symbol pcap_compile_nopcap referenced in function pcap_ex_compile_nopcap
  build\lib.win-amd64-2.7\pcap.pyd : fatal error LNK1120: 29 unresolved externals
  error: command 'C:\\Users\\Jack\\AppData\\Local\\Programs\\Common\\Microsoft\\Visual C++ for Python\\9.0\\VC\\Bin\\amd64\\link.exe' failed with exit status 1120

geajack commented 5 years ago

The problem, I assume, has something to do with these options passed to the linker

/LIBPATH:C:\Anaconda2\PCbuild\amd64
/LIBPATH:C:\Anaconda2\PC\VS9.0\amd64

since neither of those directories exist. This happens even when installing with pip instead of python -m pip.

geajack commented 5 years ago

I also tried to follow the "Installation from sources" section of the readme, but I got similar errors:

C:\Users\Jack\AppData\Local\Programs\Common\Microsoft\Visual C++ for Python\9.0\VC\Bin\amd64\link.exe /DLL /nologo /INCREMENTAL:NO /LIBPATH:C:\Anaconda2\wpdpack\Lib /LIBPATH:C:\Anaconda2\libs /LIBPATH:C:\Anaconda2\PCbuild\amd64 /LIBPATH:C:\Anaconda2\PC\VS9.0\amd64 wpcap.lib iphlpapi.lib /EXPORT:initpcap build\temp.win-amd64-2.7\Release\pcap.obj build\temp.win-amd64-2.7\Release\pcap_ex.obj /OUT:build\lib.win-amd64-2.7\pcap.pyd /IMPLIB:build\temp.win-amd64-2.7\Release\pcap.lib
/MANIFESTFILE:build\temp.win-amd64-2.7\Release\pcap.pyd.manifest
pcap.obj : warning LNK4197: export 'initpcap' specified multiple times; using first specification
   Creating library build\temp.win-amd64-2.7\Release\pcap.lib and object build\temp.win-amd64-2.7\Release\pcap.exp
pcap.obj : error LNK2019: unresolved external symbol pcap_freecode referenced in function __pyx_pf_4pcap_3bpf_4__dealloc__
pcap.obj : error LNK2019: unresolved external symbol pcap_close referenced in function __pyx_pf_4pcap_4pcap_4close
pcap.obj : error LNK2019: unresolved external symbol bpf_filter referenced in function __pyx_pf_4pcap_3bpf_2filter
pcap.obj : error LNK2019: unresolved external symbol pcap_snapshot referenced in function __pyx_pf_4pcap_4pcap_7snaplen___get__
pcap.obj : error LNK2019: unresolved external symbol pcap_datalink referenced in function __pyx_pf_4pcap_4pcap_14datalink
pcap.obj : error LNK2019: unresolved external symbol pcap_geterr referenced in function __pyx_pf_4pcap_4pcap_26geterr
pcap.obj : error LNK2019: unresolved external symbol pcap_stats referenced in function __pyx_pf_4pcap_4pcap_28stats
pcap.obj : error LNK2019: unresolved external symbol pcap_freealldevs referenced in function __pyx_pf_4pcap_4findalldevs
pcap_ex.obj : error LNK2001: unresolved external symbol pcap_freealldevs
pcap.obj : error LNK2019: unresolved external symbol pcap_findalldevs referenced in function __pyx_pf_4pcap_4findalldevs
pcap_ex.obj : error LNK2001: unresolved external symbol pcap_findalldevs
pcap.obj : error LNK2019: unresolved external symbol pcap_lookupnet referenced in function __pyx_pf_4pcap_6lookupnet
pcap.obj : error LNK2019: unresolved external symbol pcap_activate referenced in function __pyx_pf_4pcap_4pcap___init__
pcap.obj : error LNK2019: unresolved external symbol pcap_set_rfmon referenced in function __pyx_pf_4pcap_4pcap___init__
pcap.obj : error LNK2019: unresolved external symbol pcap_set_immediate_mode referenced in function __pyx_pf_4pcap_4pcap___init__
pcap.obj : error LNK2019: unresolved external symbol pcap_set_timeout referenced in function __pyx_pf_4pcap_4pcap___init__
pcap.obj : error LNK2019: unresolved external symbol pcap_set_promisc referenced in function __pyx_pf_4pcap_4pcap___init__
pcap.obj : error LNK2019: unresolved external symbol pcap_set_snaplen referenced in function __pyx_pf_4pcap_4pcap___init__
pcap.obj : error LNK2019: unresolved external symbol pcap_create referenced in function __pyx_pf_4pcap_4pcap___init__
pcap.obj : error LNK2019: unresolved external symbol pcap_open_offline referenced in function __pyx_pf_4pcap_4pcap___init__
pcap.obj : error LNK2019: unresolved external symbol pcap_setfilter referenced in function __pyx_pf_4pcap_4pcap_6setfilter
pcap.obj : error LNK2019: unresolved external symbol pcap_compile referenced in
function __pyx_pf_4pcap_4pcap_6setfilter
pcap.obj : error LNK2019: unresolved external symbol pcap_dispatch referenced in function __pyx_pf_4pcap_4pcap_20dispatch
pcap.obj : error LNK2019: unresolved external symbol pcap_sendpacket referenced
in function __pyx_pf_4pcap_4pcap_24sendpacket
pcap_ex.obj : error LNK2019: unresolved external symbol pcap_setmintocopy referenced in function pcap_ex_immediate
pcap_ex.obj : error LNK2019: unresolved external symbol pcap_getevent referenced in function pcap_ex_fileno
pcap_ex.obj : error LNK2019: unresolved external symbol pcap_setdirection referenced in function pcap_ex_setdirection
pcap_ex.obj : error LNK2019: unresolved external symbol pcap_setnonblock referenced in function pcap_ex_setnonblock
pcap_ex.obj : error LNK2019: unresolved external symbol pcap_getnonblock referenced in function pcap_ex_getnonblock
pcap_ex.obj : error LNK2019: unresolved external symbol pcap_next_ex referenced
in function pcap_ex_next
pcap_ex.obj : error LNK2019: unresolved external symbol pcap_compile_nopcap referenced in function pcap_ex_compile_nopcap
build\lib.win-amd64-2.7\pcap.pyd : fatal error LNK1120: 29 unresolved externals
error: command 'C:\\Users\\Jack\\AppData\\Local\\Programs\\Common\\Microsoft\\Visual C++ for Python\\9.0\\VC\\Bin\\amd64\\link.exe' failed with exit status 1120

pynetwork / pypcap

Visual C++ linker errors when installing #81