making build is too long

well, have a problem.
build time for windows of same project without any changes is too random. sometimes its 1 min, but its randomly increase to 3-4 hours.

i dont understand why its stuck on building sharedassets0

searching on issue tracker didnt get me an answer.
does anyone had/have such problem?

building on unity 2017.2 personal

ps. NO, turn off auto gen lighting doesnt work.

Look in the task manager of Windows and see if the shader compiler is running when you get the long build times

yes, it is, but i dont any specific shaders in project. all standard stuff

It sounds like you have some shaders with a lot of multicompile variants that unity sometimes decide to recompile.

im using standard unty shader only

but do you have other shaders in the project, that you do not use? They could maybe be referenced by something

i dont any specific shaders. only standard internal unity shaders/materials. i dont have any scrapts that creating shaders/materials.