Thore ThePixelbrain

## ultimate-fix.md

      
              1 file
            
          
              0 forks
            
          
              0 comments
            
          
              8 stars
            
          
                ThePixelbrain
                / ultimate-fix.md
            
            
              Created
              May 15, 2023 20:53
            
              
                [FTB Ultimate] Fix crash with recent Java 8 versions
              
          
    The original FTB Ultimate for MC 1.4.7 crashes during startup with new versions of Java. This applies to any 1.4.7 modpack including Forestry or Railcraft. A crash might look like the following:
[SEVERE] [Railcraft] The mod Railcraft is expecting signature a0c255ac501b2749537d5824bb0f0588bf0320fa for source railcraft.jar, however there is no signature matching that description
[SEVERE] [Railcraft] Tampering Detected. Please re-download Railcraft.

Solution:


Download this file, name it java.security and save it in the instances base folder (the .minecraft folder)
Add the following Java argument to your game: -Djava.security.properties=java.security