Unfortunately you don't give enough information.
What kind of project ?
What have you done ?
Do you use an emulator or a real device ?
If yes, how do you connect it it, via USB or B4A-Bridge ?
Do you get ans error ?
Could you post your project as a zip file ?
IDE menu File / Export As Zip.
The project works OK with a normal compiling speed.
You should use a real device !
The emulator is awfully slow.
It seems that the Genymotion emulator is faster, I haven't tried it.