quaternary started following [Solved] [1.10.2] ':decompileMc' Taking a Long Time
Did you remember to allocate a bunch of memory to Gradle? Create a file in C:/Users/<your windows username>/.gradle/ and name it "gradle.properties", and then add org.gradle.jvmargs=-Xmx3G onto a blank line. It still takes a little bit, and might appear to get stuck halfway through but give it some time. It really shouldn't take two hours though.