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Forge won't work in the launcher! it says that im using a unsupported modified version of the game! Help!

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When i start Forge in my minecraft launcher it goes well at first but then after a while when it starts it just shuts down and says " It looks like you are using an unsupported modified version of the game" and "The game crashed whilst initializing game" and it just won't work. I have checked so that i have uptdate 1.12.2 on forge,minecraft and all the mods (4) i downloaded so i don't know what could be wrong! Here is the error thingy:  Error: java.lang.NoClassDefFoundError: com/mia/craftstudio/IPackReaderCallback

Do you have DecoCraft2 installed? And do you have PTRLib installed with it?

Don't PM me with questions. They will be ignored! Make a thread on the appropriate board for support.

 

1.12 -> 1.13 primer by williewillus.

 

1.7.10 and older versions of Minecraft are no longer supported due to it's age! Update to the latest version for support.

 

http://www.howoldisminecraft1710.today/

  • Author

i din't know why it says that craftstudio is the problem because i don't even have craftstudio downloaded. And i downloaded decocraft , but not decocraft 2 i think... And what is PTRLib?

4 hours ago, fr0gdude said:

what is PTRLib?

It's a library which is required to be installed for DecoCraft to run. Try installing it, a quick search online revealed the same issue with PTRLib missing.

Don't PM me with questions. They will be ignored! Make a thread on the appropriate board for support.

 

1.12 -> 1.13 primer by williewillus.

 

1.7.10 and older versions of Minecraft are no longer supported due to it's age! Update to the latest version for support.

 

http://www.howoldisminecraft1710.today/

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