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I recently started trying to get back into modding after having last done anything in 1.15. Now when I try to run the client with Java8 I get this error Exception in thread "main" java.lang.UnsupportedClassVersionError: cpw/mods/bootstraplauncher/BootstrapLauncher has been compiled by a more recent version of the Java Runtime (class file version 60.0), this version of the Java Runtime only recognizes class file versions up to 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source) Doing some research I found I needed to update to at least Java16 to fix this error. But when I do that I now get this error Exception in thread "main" java.lang.ExceptionInInitializerError at cpw.mods.niofs.union.UnionFileSystemProvider.newFileSystemInternal(UnionFileSystemProvider.java:115) at cpw.mods.niofs.union.UnionFileSystemProvider.newFileSystem(UnionFileSystemProvider.java:105) at cpw.mods.jarhandling.impl.Jar.<init>(Jar.java:84) at cpw.mods.jarhandling.SecureJar.from(SecureJar.java:70) at cpw.mods.jarhandling.SecureJar.from(SecureJar.java:66) at cpw.mods.jarhandling.SecureJar.from(SecureJar.java:58) at cpw.mods.jarhandling.SecureJar.from(SecureJar.java:50) at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:84) Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field static final java.lang.invoke.MethodHandles$Lookup java.lang.invoke.MethodHandles$Lookup.IMPL_LOOKUP accessible: module java.base does not "opens java.lang.invoke" to unnamed module @7d4793a8 at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354) at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:178) at java.base/java.lang.reflect.Field.setAccessible(Field.java:172) at cpw.mods.niofs.union.UnionFileSystem.<clinit>(UnionFileSystem.java:52) ... 8 more I can execute runClient in command prompt without any issues, but not through Eclipse. I have tried this with both Java16 and Java17 and both give this same error. Does anyone have any suggestions to get this working correctly?

I'm having issues getting my animated model to work properly. When the block is placed, the model animates properly however there is an underlying, non-animating black version of it that is rendering within it. I get no console errors. The black version has all of the fan-blades rendered instead of alternating from one set to another. Block Init: Fan Class: Fan Blockstate:

Before I state my problem, I want to say at which point I got to before I got stuck: I already downloaded the MDK, I pulled out the following files: built.gradle, gradlew.bat (I couldn't find the gradlew.sh though), and the gradle folder. I then opened command prompt at the folder directory and executed the following command: setupDecompWorkspace. It ran fine- and took roughly an hour to reach the error. After a while of searching and using recommended fix commands for the download, I decided to take these two screenshots of two different occasions of this error. I'm not sure what the error is telling me, so could anyone who does know walk me through the steps to correct it- it would be much appreciated. Thank you.