warning: [options] bootstrap class path not set in conjunction with -source 1.6
E:\Pylo\MCreator175\forge\build\sources\main\java\mod\mcreator\mcreator_question.java:111: error: illegal start of expression
if (((EntityPlayer)entity).inventory.armorItemInSlot(3).getItem() !== null &&
                                              ^
((EntityPlayer)entity).inventory.armorItemInSlot(3).getItem() == Items.DIAMOND_HELMET){

1 error
1 warning

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.