I used to just execute the following command line to build _Bento4_ from _master_ branch:
```
cd .\Build\Targets\x86_64-microsoft-win32-vs2019
. "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\Bin\MSBuild.exe" .\Bento4.sln -p:Configuration=Release
```

Last time it worked was February 1st. Today after `git pull` that command yielded a link error:

> Bento4.lib(Ap4AtomFactory.obj) : error LNK2019: unresolved external symbol "public: static class AP4_Av1cAtom * __cdecl AP4_Av1cAtom::Create(unsigned int,class AP4_ByteStream &)" (?Create@AP4_Av1cAtom@@SAPAV1@IAAVAP4_ByteStream@@@Z) referenced in function "public: virtual int __thiscall AP4_AtomFactory::CreateAtomFromStream(class AP4_ByteStream &,unsigned int,unsigned int,unsigned __int64,class AP4_Atom * &)" (?CreateAtomFromStream@AP4_AtomFactory@@UAEHAAVAP4_ByteStream@@II_KAAPAVAP4_Atom@@@Z) [C:\Projects\ncps-encoder\Bento4\Build\Targets\x86_64-microsoft-win32-vs2019\Mp42Aac\Mp42Aac.vcxproj]

Am I missing something?
Error building master on Windows
This is a GitHub Issue
repo:Bento4
owner:axiomatic-systems
Title : Error building master on Windows
Issue date:

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I used to just execute the following command line to build _Bento4_ from _master_ branch:
```
cd .\Build\Targets\x86_64-microsoft-win32-vs2019
. "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\Bin\MSBuild.exe" .\Bento4.sln -p:Configuration=Release
```

Last time it worked was February 1st. Today after `git pull` that command yielded a link error:

> Bento4.lib(Ap4AtomFactory.obj) : error LNK2019: unresolved external symbol "public: static class AP4_Av1cAtom * __cdecl AP4_Av1cAtom::Create(unsigned int,class AP4_ByteStream &)" (?Create@AP4_Av1cAtom@@SAPAV1@IAAVAP4_ByteStream@@@Z) referenced in function "public: virtual int __thiscall AP4_AtomFactory::CreateAtomFromStream(class AP4_ByteStream &,unsigned int,unsigned int,unsigned __int64,class AP4_Atom * &)" (?CreateAtomFromStream@AP4_AtomFactory@@UAEHAAVAP4_ByteStream@@II_KAAPAVAP4_Atom@@@Z) [C:\Projects\ncps-encoder\Bento4\Build\Targets\x86_64-microsoft-win32-vs2019\Mp42Aac\Mp42Aac.vcxproj]

Am I missing something?
--- end body ---
