Edit: Modpack reference removed. Specific conflicting mod added.
Full Mod List:
XPlus Autofish 1.3.1
Cloth Config API 15.0.130
Placebo-1.21.1-9.4.1 (Note: this is a popular library mod with 173M downloads on Curseforge. You do not need to install any other mods to repro the issue.) https://www.curseforge.com/minecraft/mc-mods/placebo
Also tested with neoforge 21.1.23 (current) and got the same error
Error:
The game crashed whilst unexpected error
Error: java.lang.NullPointerException: Cannot invoke "com.wudji.xplusautofish.XPlusAutofish.tick(net.minecraft.client.Minecraft)" because "this.autofish" is null
Repro:
In Curseforge, install a new instance of Minecraft 1.21 with Neoforge 21.1.21+. Add XPlus Autofish, Cloth API, and Placebo. Launch instance. Crash will occur before main menu.
Edit: Modpack reference removed. Specific conflicting mod added.
Full Mod List: XPlus Autofish 1.3.1 Cloth Config API 15.0.130 Placebo-1.21.1-9.4.1 (Note: this is a popular library mod with 173M downloads on Curseforge. You do not need to install any other mods to repro the issue.) https://www.curseforge.com/minecraft/mc-mods/placebo
Also tested with neoforge 21.1.23 (current) and got the same error
Error: The game crashed whilst unexpected error Error: java.lang.NullPointerException: Cannot invoke "com.wudji.xplusautofish.XPlusAutofish.tick(net.minecraft.client.Minecraft)" because "this.autofish" is null
Crash Report: Crash report with minimal mods: https://pastebin.com/S1PrLJ5A
Repro: In Curseforge, install a new instance of Minecraft 1.21 with Neoforge 21.1.21+. Add XPlus Autofish, Cloth API, and Placebo. Launch instance. Crash will occur before main menu.