I tried changing that.
echo $LD_LIBRARY_PATH
/opt/FPGA/hld/linux64/lib:/opt/FPGA/hld/board/a10_ref/linux64/lib:/opt/FPGA/hld/host/linux64/lib
but still same error. I have seen lib files in all these three paths
/opt/FPGA/hld/linux64/lib$ ls
__ocl_svml_e9.so clbltfne9_img_cbk.rtl emu_libs libaoc_clang_decrypt.so libelf.so.0
__ocl_svml_h8.so clbltfnh8.rtl libOclCpuBackEnd.so libaxerces-c.so libintelocl.so-gdb.py
__ocl_svml_l9.so clbltfnh8_img_cbk.rtl libOclCpuDebugging.so libaxerces-c.so.26 libintelocl_emu.so
__ocl_svml_z0.so clbltfnl9.rtl libOpenCL.so libcl_logger_emu.so libtask_executor_emu.so
aclomp.so clbltfnl9_img_cbk.rtl libOpenCL.so.1 libclang_compiler.so sources
aclomptbb.so clbltfnz0.rtl libOpenCL.so.2.0 libcommon_clang.so
cl.cfg clbltfnz0_img_cbk.rtl libalteracl.so libcpu_device_emu.so
clbltfne9.rtl dspba libalterahalmmd.so libelf.so
/opt/FPGA/hld/board/a10_ref/linux64/lib$ ls
libaltera_a10_ref_mmd.so
/opt/FPGA/hld/host/linux64/lib$ ls
libOpenCL.so libaltera_mpfr.so libaoc_cosim_mmd.so libelf.so.0 libzmq.so.1
libOpenCL.so.1 libaltera_mpir.so libaoc_cosim_msim.so libz.so libzmq.so.1.0.1
libOpenCL.so.2.0 libalteracl.so libaoc_cosim_msim32.so libz.so.1 sources
libacl_emulator_kernel_rt.so libalterahalmmd.so libelf.so libzmq.so
I really dont see libdsdk.so
Do you have this libdsdk.so file in any of your paths? May be my installation is wrong.