[Solved] [1.15.2] Crash - Dev lost connection?

[IceMetalPunk]

I was working on my 1.15.2 mod, which so far just has a single block/block item/tile entity. Everything was working fine, and then I edited a texture. Yes, as far as I know, the only thing I changed was a texture. Now, whenever I try to run the client/server, it crashes during startup. Looking through the logs, I see no cause for it; just the usual Yggdrasil warning and then a seemingly random "Dev lost connection", followed by the server shutting down because of the connection loss.

 

Here's the crash log: https://www.dropbox.com/s/rvdl8p1q4kt5j57/EclipseOutput.log?dl=0

 

Can anyone see what I missed? I've closed Eclipse and re-opened it, with no luck; it still crashes the same way on load every time, before it even gets to the main menu.

 

EDIT: So... finally figured out what I missed. I have no idea how this changed, but somehow Eclipse started running using the runData launch config instead of the runClient. I definitely never intentionally switched that. Mystery (and) problem solved; just switched back to runClient and it all works now. *Sigh*

Edited March 30, 2020 by IceMetalPunk
Solved