libz.so.1: no version information available

I am using wireshark 1.10.x in Linux. If running the following command: tshark -r test.pcap -V >> test.txt The command passed.

But if I call the command in my software, the error is: tshark: /home/my software/bin/libz.so.1: no version information available (required by /usr/local/lib/libwiretap.so.3) libz.so.1 exists in both /lib/libz.so.1 and /home/my software/bin/libz.so.1, and they have the same version number.

Any possible reason for the failure? And how to let tshark call /lib/libz.so.1, not /home/my software/bin/libz.so.1?

The error did not happen when using wirehshark 1.6.x.

Thank you.