AlliedModders - Problem compiling sample

I followed the guides and got so far as trying to build (sdk.sln in the msvc12 folder) in VS2019 but I get the error bellow:

Code:

Build started...

1>------ Build started: Project: sdk, Configuration: Debug Win32 ------

1>extension.cpp

1>c:\alliedmodders\sourcemod\public\isharesys.h(40): fatal error C1083: Cannot open include file: 'sp_vm_types.h': No such file or directory

1>smsdk_ext.cpp

1>c:\alliedmodders\sourcemod\public\isharesys.h(40): fatal error C1083: Cannot open include file: 'sp_vm_types.h': No such file or directory

1>Generating Code...

1>Done building project "sdk.vcxproj" -- FAILED.

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Error List:

Code:

Severity        Code        Description        Project        File        Line        Suppression State

Error        C1083        Cannot open include file: 'sp_vm_types.h': No such file or directory        sdk        c:\alliedmodders\sourcemod\public\isharesys.h        40        

Error        C1083        Cannot open include file: 'sp_vm_types.h': No such file or directory        sdk        c:\alliedmodders\sourcemod\public\isharesys.h        40        

Error (active)        E1696        cannot open source file "am-string.h"        sdk        C:\alliedmodders\sourcemod\public\IExtensionSys.h        37        

Error (active)        E1696        cannot open source file "am-string.h"        sdk        C:\alliedmodders\sourcemod\public\smsdk_ext.h        46        

Error (active)        E1696        cannot open source file "sp_vm_api.h"        sdk        C:\alliedmodders\sourcemod\public\IShareSys.h        41        

Error (active)        E1696        cannot open source file "sp_vm_api.h"        sdk        C:\alliedmodders\sourcemod\public\ISourceMod.h        41        

Error (active)        E1696        cannot open source file "sp_vm_api.h"        sdk        C:\alliedmodders\sourcemod\public\smsdk_ext.h        43        

Error (active)        E1696        cannot open source file "sp_vm_types.h"        sdk        C:\alliedmodders\sourcemod\public\IHandleSys.h        52        

Error (active)        E1696        cannot open source file "sp_vm_types.h"        sdk        C:\alliedmodders\sourcemod\public\IShareSys.h        40        

Error (active)        E0725        name must be a namespace name        sdk        C:\alliedmodders\sourcemod\public\smsdk_ext.h        111

Any ideas?

Regards,