Python cx\U冻结类型错误：源代码字符串不能包含空字节

我已尝试修复此问题两天： setup.py

每次使用

python setup.py build运行它时，我都会得到：
TypeError:源代码字符串不能包含空字节

您可以在找到main.py

我曾尝试在notepad++中打开
main.py
，并显示隐藏的符号。
我在文件中找不到任何
nul
或
\x00
符号

我正在使用python 3.4

from cx_Freeze import setup, Executable

executables = [Executable("main.py",base="Win32GUI")]

setup(
    name="Life of Robert",
    version = "1.0",
    description = "An RPG with endless maps.",
    options={
    "build_exe":
            {
            "packages": ["pygame"],
            "include_files": ['Images/','Sounds/','Maps/','Houses/'],
            "includes": ["chest","gold","gui","message","player","settings","utils","wolf"],
            },

    },
    executables = executables

    )