Make Error: ocalls.h: No such file or directory

[lubaolalala]

luabolalala@HP:~/Downloads/sgx/sgx-wallet-master$ source /opt/intel/sgxsdk/environment
luabolalala@HP:~/Downloads/sgx/sgx-wallet-master$ make
app/app.cpp:28:10: fatal error: ocalls.h: No such file or directory
 #include "ocalls.h"
          ^~~~~~~~~~
compilation terminated.
Makefile:176: recipe for target 'app/app.o' failed
make: *** [app/app.o] Error 1

[lubaolalala]

I downloaded sgxsdk2.10. Please help, thank you a lot.