ValueError: embedded null character

C:\ProgramData\Anaconda3\python.exe C:/Users/mona6/.PyCharm2017.1/config/scratches/scratch.py
Traceback (most recent call last):
  File "C:/Users/mona6/.PyCharm2017.1/config/scratches/scratch.py", line 4, in <module>
    img_array = np.load("E:\datasets\hand\multi-user-egocentric\subject1\abdadd\000000_depth.npy")
  File "C:\ProgramData\Anaconda3\lib\site-packages\numpy\lib\npyio.py", line 362, in load
    fid = open(file, "rb")
ValueError: embedded null character

Process finished with exit code 1