1) create an event "Every tick"
2) create an action for this event, which should change the text object Text
3) In this step, I am writing as shown in the attached picture
4) Then, in expressions window i'm choose "System -> loadingprogress" and then the system crashes
p.s. If instead of "????????: " to write in English "Loading: " all is normal
p.p.s Construct 2 (release 100), Windows 7 x64 RUS
Sorry for my English :)