[OPAE] Failed to clear port errors during DMA streaming

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I ran a set of 20 DMA (Direct Memory Access) streaming programs using a bas=
h script and it suddenly stops working. Trying to a single fpga_dma_st_test=
 command again gives me this error ->
./fpga_dma_st_test: error while loading shared libraries: libopae-c.so.1: c=
annot open shared object file: No such file or directory

If I try to reconfigure the FPGA using fpgaconf, I get the following error =
->
sysfs.c:1281:sysfs_write_u64() *ERROR* : Failed to write
reconf.c:218:clear_port_errors() *ERROR* : Failed to clear port errors
reconf.c:358:xfpga_fpgaReconfigureSlot() *ERROR* : Failed to clear port err=
ors.

What's the reason for this error? And is there any way to fix this?

Thank You,
Hrishikesh S.
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