Soc EDS fail to connect to usb blaster

[Altera_Forum]

I have install Soc EDS v14 on centos 7, and run as doc ug_soc_eds.pdf secion “Getting Started with Bare-Metal Debugging” introduce， but when I Select Run > Debug Configurations and Click Browse to select the USB Blaster connection(refer to 4-29 steps 3 in pdf),it show "One entry must be selected"  

https://www.alteraforum.com/forum/attachment.php?attachmentid=9229   And soon show blew information: https://www.alteraforum.com/forum/attachment.php?attachmentid=9230  But in fact the variable have been set before start eclips: https://www.alteraforum.com/forum/attachment.php?attachmentid=9231 https://www.alteraforum.com/forum/attachment.php?attachmentid=9232  And I can down load data with quartus ii, so why Soc EDS cann't connect to usb blaster?    I install the softeware on windows 7 and avoid this problem, if someone have success run soc eds on linux? which distribution and version do you use?

[Altera_Forum]

On http://www.altera.com/download/os-support/oss-index.html is enumerated only "Windows 7", "Windows 8", "Red Hat Enterprise Linux 5", "Red Hat Enterprise Linux 6", "Windows Server 2008 R2 (4)". 

On http://www.rocketboards.org/foswiki/documentation/gsrd131gettingstartedyocto also "CentOS 6.3 and Ubuntu 12.04". If try to reinstall SoC EDS, problem continues ? Quartus Programmer and Signal Tap also failed ?

[Altera_Forum]

I have tryed reinstall Soc EDS，but problem continues. 

Quartus Programmer success, I can down load a sof file to fpga. I have not try Signal Tap. But I run the "jtagconfig" commond, it can read usb-blaster information.

[Altera_Forum]

Good! Altera Guru, QuaPro and SigTap uses the same libjtag_client.so for work ? 

"Failed to load libjtag_client.so" may be on small rights of .so: if need be executable +x ? May try 3 other versions of SoC EDS ver 13.*, its .so is worked ? Then will copy good .so to 14.0 directory... May be extended diagnostic of loading .so in any console with keys ?  P.S. And may use many USB-Blasters and connect to board in round-robin -- if some by work ? :) In SoC kit present also 2nd USB-Blaster-connector (left-down corner) for external JTAG-device, with connecting to it 1st is automatic off. May try this way.

[Altera_Forum]

Try to create shell environment variable like: 

export LD_LIBRARY_PATH=${QUARTUS_ROOTDIR}/linux32/  where QUARTUS_ROOTDIR points to <installation>/quartus

[Altera_Forum]

This solve the problem, thank you very much