为什么eclipse无法创建 Java project

每次创建Java project都会下面这个窗口，不知道到底是什么原因，jdk我也下好了可以用，希望各位大佬能帮帮我
Problem Occurred
Building' has encountered a problem.
ok     Details
Errors running builder 'Java Builder' on project 'ab'.
For input string: "G" under radix 16