Building with Intellij 2017.2 /out directory duplicates files in /build directory

Question

After updating to Intellij 2017.2, building my project creates an /out directory that contains generated source files and resource files. These files duplicate

Answer 1

Here is my understanding:

Basically, this is a work-around for an incompatibility issue between Gradle build path and IDEA output path.

• the issue is - https://github.com/gradle/gradle/issues/2315
• the solution is - keep these two directories seperate, therefore you have two (out/ and build/) https://youtrack.jetbrains.com/issue/IDEA-189063