23:15:49 **** Build of configuration Sming for project HttpServer_ConfigNetwork ****
make all
C+ app/application.cpp
C+ /opt/sming/Sming/appinit/user_main.cpp
AR out/build/app_app.a
LD out/build/app.out
/opt/sming/Sming/compiler/lib//libsming.a(HttpServer.o)
.text._ZN10HttpServer13initWebSocketER20HttpServerConnectionR11HttpRequestR12HttpResponse+0x8): undefined reference to `vtable for WebSocket'
/opt/sming/Sming/compiler/lib//libsming.a(HttpServer.o)
.text._ZN10HttpServer13initWebSocketER20HttpServerConnectionR11HttpRequestR12HttpResponse+0xc): undefined reference to `WebSocket::WebSocket(HttpServerConnection*)'
/opt/sming/Sming/compiler/lib//libsming.a(HttpServer.o)
.text._ZN10HttpServer13initWebSocketER20HttpServerConnectionR11HttpRequestR12HttpResponse+0x10): undefined reference to `WebSocket::initialize(HttpRequest&, HttpResponse&)'
/opt/sming/Sming/compiler/lib//libsming.a(HttpServer.o)
.text._ZN10HttpServer13initWebSocketER20HttpServerConnectionR11HttpRequestR12HttpResponse+0x31): undefined reference to `WebSocket::WebSocket(HttpServerConnection*)'
/opt/sming/Sming/compiler/lib//libsming.a(HttpServer.o): In function `HttpServer::initWebSocket(HttpServerConnection&, HttpRequest&, HttpResponse&)':
C:\DEV\ESP8266\Sming\Sming/Wiring/WVector.h:47: undefined reference to `WebSocket::initialize(HttpRequest&, HttpResponse&)'
collect2: error: ld returned 1 exit status
make: *** [out/build/app.out] Error 1
23:15:50 Build Finished (took 1s.171ms)