After the launcher is updated running modpacks started to give an error. None of the twitchmodpack not working. Here's the error I received:
The game crashed whilst initializing game
Error: java.lang.IllegalArgumentException: Block: class erogenousbeef.bigreactors.common.multiblock.block.BlockMultiblockController has property: controller with invalidly named value: �dle
Crash report attached.
Attachments
Comments 3
Here's a work around. I found out.
Check the version of that specific modpack, then select and play the vanilla version ON the same launcher as the modpack. As soon as you get a successful run with the vanilla version. Close it, then open up the modpack and play it. If all goes well, it should work as normal.
My best guess as to why the modpacks wont work upon first play is because the new launcher refreshes version files, and deletes old launcher configs, therefore the version files for the game don't load, causing a crash.
Thank you for your report!
However, this issue is Invalid.
Your game, launcher or server is modified.
If you can reproduce the issue in a vanilla environment, please recreate the issue.
Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the creator of the plugin or resource pack.
If you have problems on large servers, such as The Hive and Hypixel, please contact them first as they run modified server software.
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