Slimes are not spawning in my slime farm. I dug out a 16×16 area that I saw in the AMIDST. The dimensions are correct. light level is 10-12. I think there's a ravine type of thing just beside my farm. Is that a problem? The hole on wall is the entrance to ravine. I can hear a few mobs from here and the ravine is lit up. 
Minecraft – slimes not spawning in slime farm
minecraft-java-edition
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Best Answer
Slimes usually take a LONG time to spawn even in swamps. Make sure your not in peacefully just in case you accidently turned it to it. Hope this helped.