SVG show and deploy in Release mod errors!

[Ilya]

Hello! I try to use this programm and In Debug mode SVG code is not displayed and show error:
qt.svg: link # is undefined!

If we try to run the program in Release mode, then it is not linked with error:`

/usr/bin/ld: qmlcache_loader.o: undefined reference to symbol '_ZN11QQmlPrivate13qmlunregisterENS_16RegistrationTypeEy@@Qt_5'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make: *** [Makefile:927: qtmathjax-test] Error 1
23:38:39: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project qtmathjax-test (kit: Desktop)
When executing step "Make"