I created a modpack called Pixelmon+ on the Twitch Launcher but when i updated the mods and clicked play after a few seconds, minecraft crashed could anyone take a look and help me, thanks. Dont know much about coding so here's the crash report, https://pastebin.com/6sEvKcgS. Again Thnx.
Skimming the listed mod filenames, I notice a lot of "-deobf" and "-dev" suffixes before the ".jar" extension. There might be a few cases where "-dev" indicates a "development" build (similar to a mod being in "beta"), but more often it indicates a "developer" build, which similar to the "deobfuscated" builds, are for running from a dev environment such as Eclipse when writing a mod, not for running from a normal Minecraft launcher. You should find the downloads for those mods that either have a "-universal" suffix or no extra suffix when other related files have "-dev", "-deobf", or "-sources" as suffixes.