Problem with Compiling Examples for DE1-SOC

Hi Everyone,

I'm kinda new to OpenCL with Altera boards and I'm trying to compile the examples for DE1-SOC board using the OpenCL SDK and all of them gets an error which I can't seem to figure out why are they failing.

They all gives me:

system_integrator: main.cpp:470: int ReadKernelData(altera_xercesc_2_6::XERCES_DOMDocument*, OpenCLSystem*): Assertion `document != __null' failed.Aborted (core dumped)
Error: System integrator FAILED.I
Refer to vector_add/vector_add.log for details.

Can anyone help me?

Thank you!