Error in example TestEm5

Hello experts,

While running advance example TestEm5 I am facing error as shown in fig 1.
Please suggest me how to fix this.
At the time of build of this example a few warning shown. Should I have to worry of these warnings? shared in image 2.

No error occurred while running other examples.

The compiler warnings are just deprecation warnings, and should be fixed (or to be fixed!) in the latest versions. However, they should not affect the running of the application.

Regarding the error in the Qt GUI fir TestEm5, what is the error, or rather, what do you expect it to be doing/showing?