failed to compile after upgrading to new version

2> [1/4] Module.Game.gen.cpp
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(172): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(172): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(172): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(172): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(208): error C2144: syntax error: ‘bool’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(208): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(182): error C3861: ‘ToString’: identifier not found
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(243): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(243): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(243): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(243): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): error C2144: syntax error: ‘bool’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(284): error C2143: syntax error: missing ‘;’ before ‘const’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(284): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(284): error C2086: ‘int FIPv4Address::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): note: see declaration of ‘FIPv4Address::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(284): error C2460: ‘FIPv4Address::Any’: uses ‘FIPv4Address’, which is being defined
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(11): note: see declaration of ‘FIPv4Address’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(287): error C2143: syntax error: missing ‘;’ before ‘const’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(287): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(287): error C2086: ‘int FIPv4Address::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): note: see declaration of ‘FIPv4Address::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(287): error C2460: ‘FIPv4Address::InternalLoopback’: uses ‘FIPv4Address’, which is being defined
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(11): note: see declaration of ‘FIPv4Address’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(290): error C2143: syntax error: missing ‘;’ before ‘const’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(290): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(290): error C2086: ‘int FIPv4Address::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): note: see declaration of ‘FIPv4Address::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(290): error C2460: ‘FIPv4Address::LanBroadcast’: uses ‘FIPv4Address’, which is being defined
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(11): note: see declaration of ‘FIPv4Address’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(253): error C3861: ‘ToString’: identifier not found
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(122): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(122): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(122): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(122): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): error C2144: syntax error: ‘void’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(161): error C2144: syntax error: ‘bool’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(161): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(161): error C2086: ‘int FIPv4Endpoint::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): note: see declaration of ‘FIPv4Endpoint::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(166): error C2143: syntax error: missing ‘;’ before ‘const’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(166): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(166): error C2086: ‘int FIPv4Endpoint::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): note: see declaration of ‘FIPv4Endpoint::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(166): error C2460: ‘FIPv4Endpoint::Any’: uses ‘FIPv4Endpoint’, which is being defined
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(17): note: see declaration of ‘FIPv4Endpoint’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C3646: ‘ISocketSubsystem’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C2143: syntax error: missing ‘;’ before ‘
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C2086: ‘int FIPv4Endpoint::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): note: see declaration of ‘FIPv4Endpoint::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(105): error C2065: ‘CachedSocketSubsystem’: undeclared identifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(107): error C2065: ‘CachedSocketSubsystem’: undeclared identifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(132): error C3861: ‘ToString’: identifier not found
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(103): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(103): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(103): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(103): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(139): error C2144: syntax error: ‘bool’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(139): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(113): error C3861: ‘ToString’: identifier not found
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/Steam/SteamEndpoint.h(94): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/Steam/SteamEndpoint.h(94): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/Steam/SteamEndpoint.h(94): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/Steam/SteamEndpoint.h(94): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Common/TcpSocketBuilder.h(29): error C2597: illegal reference to non-static member ‘FIPv4Address::Any’
2> d:\github\ue\engine\source\runtime
etworking\public\Common/TcpSocketBuilder.h(29): note: see declaration of ‘FIPv4Address::Any’
2>d:\github\ue\engine\source\runtime
etworking\public\Common/UdpSocketBuilder.h(30): error C2597: illegal reference to non-static member ‘FIPv4Address::Any’
2> d:\github\ue\engine\source\runtime
etworking\public\Common/UdpSocketBuilder.h(30): note: see declaration of ‘FIPv4Address::Any’
2>d:\github\ue\engine\source\runtime
etworking\public\Common/UdpSocketBuilder.h(277): error C2039: ‘ToString’: is not a member of ‘FIPv4Endpoint’
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(17): note: see declaration of ‘FIPv4Endpoint’
2>d:\github\ue\engine\source\runtime
etworking\public\Common/UdpSocketBuilder.h(295): error C2039: ‘ToString’: is not a member of ‘FIPv4Address’
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(11): note: see declaration of ‘FIPv4Address’
2> [2/4] Module.Game.cpp
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(172): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(172): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(172): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(172): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(208): error C2144: syntax error: ‘bool’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(208): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4SubnetMask.h(182): error C3861: ‘ToString’: identifier not found
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(243): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(243): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(243): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(243): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): error C2144: syntax error: ‘bool’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(284): error C2143: syntax error: missing ‘;’ before ‘const’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(284): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(284): error C2086: ‘int FIPv4Address::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): note: see declaration of ‘FIPv4Address::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(284): error C2460: ‘FIPv4Address::Any’: uses ‘FIPv4Address’, which is being defined
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(11): note: see declaration of ‘FIPv4Address’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(287): error C2143: syntax error: missing ‘;’ before ‘const’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(287): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(287): error C2086: ‘int FIPv4Address::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): note: see declaration of ‘FIPv4Address::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(287): error C2460: ‘FIPv4Address::InternalLoopback’: uses ‘FIPv4Address’, which is being defined
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(11): note: see declaration of ‘FIPv4Address’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(290): error C2143: syntax error: missing ‘;’ before ‘const’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(290): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(290): error C2086: ‘int FIPv4Address::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(279): note: see declaration of ‘FIPv4Address::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(290): error C2460: ‘FIPv4Address::LanBroadcast’: uses ‘FIPv4Address’, which is being defined
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(11): note: see declaration of ‘FIPv4Address’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(253): error C3861: ‘ToString’: identifier not found
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(122): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(122): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(122): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(122): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): error C2144: syntax error: ‘void’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(161): error C2144: syntax error: ‘bool’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(161): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(161): error C2086: ‘int FIPv4Endpoint::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): note: see declaration of ‘FIPv4Endpoint::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(166): error C2143: syntax error: missing ‘;’ before ‘const’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(166): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(166): error C2086: ‘int FIPv4Endpoint::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): note: see declaration of ‘FIPv4Endpoint::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(166): error C2460: ‘FIPv4Endpoint::Any’: uses ‘FIPv4Endpoint’, which is being defined
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(17): note: see declaration of ‘FIPv4Endpoint’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C3646: ‘ISocketSubsystem’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C2143: syntax error: missing ‘;’ before '

2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C2086: ‘int FIPv4Endpoint::NETWORKING_API’: redefinition
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(151): note: see declaration of ‘FIPv4Endpoint::NETWORKING_API’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(171): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(105): error C2065: ‘CachedSocketSubsystem’: undeclared identifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(107): error C2065: ‘CachedSocketSubsystem’: undeclared identifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(132): error C3861: ‘ToString’: identifier not found
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(103): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(103): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(103): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(103): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(139): error C2144: syntax error: ‘bool’ should be preceded by ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(139): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Subnet.h(113): error C3861: ‘ToString’: identifier not found
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/Steam/SteamEndpoint.h(94): error C3646: ‘FString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/Steam/SteamEndpoint.h(94): error C3646: ‘ToString’: unknown override specifier
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/Steam/SteamEndpoint.h(94): error C2059: syntax error: ‘(’
2>d:\github\ue\engine\source\runtime
etworking\public\Interfaces/Steam/SteamEndpoint.h(94): error C2238: unexpected token(s) preceding ‘;’
2>d:\github\ue\engine\source\runtime
etworking\public\Common/TcpSocketBuilder.h(29): error C2597: illegal reference to non-static member ‘FIPv4Address::Any’
2> d:\github\ue\engine\source\runtime
etworking\public\Common/TcpSocketBuilder.h(29): note: see declaration of ‘FIPv4Address::Any’
2>d:\github\ue\engine\source\runtime
etworking\public\Common/UdpSocketBuilder.h(30): error C2597: illegal reference to non-static member ‘FIPv4Address::Any’
2> d:\github\ue\engine\source\runtime
etworking\public\Common/UdpSocketBuilder.h(30): note: see declaration of ‘FIPv4Address::Any’
2>d:\github\ue\engine\source\runtime
etworking\public\Common/UdpSocketBuilder.h(277): error C2039: ‘ToString’: is not a member of ‘FIPv4Endpoint’
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Endpoint.h(17): note: see declaration of ‘FIPv4Endpoint’
2>d:\github\ue\engine\source\runtime
etworking\public\Common/UdpSocketBuilder.h(295): error C2039: ‘ToString’: is not a member of ‘FIPv4Address’
2> d:\github\ue\engine\source\runtime
etworking\public\Interfaces/IPv4/IPv4Address.h(11): note: see declaration of ‘FIPv4Address’

This is not even my classes, this is ENGINE classes, and they dont see FString declaration. WTF???

Did you ever solve this issue?