dimention not working?

I have a problem with a dimension, I am trying to make its called voiddimension when I try to run it it just doesn't work and the console says

Executing gradle task: build
Build info: MCreator 2020.1.05419, 1.14.4, 64-bit, 7993 MB, Windows 10, JVM 1.8.0_232, JAVA_HOME: C:\Program Files\Pylo\MCreator\jdk
> Configure project :
New Dep: net.minecraftforge:forge:1.14.4-28.1.116_mapped_snapshot_20190719-1.14.3
> Task :compileJava
C:\Users\Sen\Dropbox\WSBIM\more_bosses\src\main\java\net\mcreator\what_sould_be_in_mc\MCreatorVoiddimention.java:174: error: '{' expected
   public static class Size /* failed to load code for net.minecraft.block.NetherPortalBlock */
                           ^
C:\Users\Sen\Dropbox\WSBIM\more_bosses\src\main\java\net\mcreator\what_sould_be_in_mc\MCreatorVoiddimention.java:205: error: '{' expected
   public static class PortalPosition /* failed to load code for net.minecraft.world.Teleporter */
                                     ^
C:\Users\Sen\Dropbox\WSBIM\more_bosses\src\main\java\net\mcreator\what_sould_be_in_mc\MCreatorVoiddimention.java:272: error: illegal start of type
   }
   ^
C:\Users\Sen\Dropbox\WSBIM\more_bosses\src\main\java\net\mcreator\what_sould_be_in_mc\MCreatorVoiddimention.java:272: error: ';' expected
   }
    ^
C:\Users\Sen\Dropbox\WSBIM\more_bosses\src\main\java\net\mcreator\what_sould_be_in_mc\MCreatorVoiddimention.java:363: error: illegal start of type
}
^
C:\Users\Sen\Dropbox\WSBIM\more_bosses\src\main\java\net\mcreator\what_sould_be_in_mc\MCreatorVoiddimention.java:363: error: ';' expected
}
 ^
C:\Users\Sen\Dropbox\WSBIM\more_bosses\src\main\java\net\mcreator\what_sould_be_in_mc\MCreatorVoiddimention.java:365: error: reached end of file while parsing
}
 ^
C:\Users\Sen\Dropbox\WSBIM\more_bosses\src\main\java\net\mcreator\what_sould_be_in_mc\MCreatorVoiddimention.java:367: error: reached end of file while parsing
8 errors
> Task :compileJava FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/4.9/userguide/command_line_interface.html#sec:c…
BUILD FAILED in 10s
1 actionable task: 1 executed
BUILD FAILED
Task completed in 34029 milliseconds

please help, this is a project for school and I don't know how to fix it