webgate.so: undefined symbol: nzos_GetSessionMasterSecret

While starting ohs, I was getting below errors in ohs1.log after I configured Webgate 11.2.3.0 with OHS 11.1.1.7


ERROR
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/home/oracle/fmw/products/111/ohs_117/ohs/bin/apachectl startssl: execing httpd
httpd.worker: Syntax error on line 1035 of /home/oracle/admin/ohs_instances/config/OHS/ohs1/httpd.conf: Syntax error on line 4 of /home/oracle/admin/ohs_instances/config/OHS/ohs1/webgate.conf: Cannot load /home/oracle/fmw/products/111/oamWebgateR2/webgate/ohs/lib/webgate.so into server: /home/oracle/fmw/products/111/oamWebgateR2/webgate/ohs/lib/webgate.so: undefined symbol: nzos_GetSessionMasterSecret

ISSUE
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Above error is caused by using incompatible version of Webgate with corresponding OHS
Webgate version 11.1.2.3 requires OHS 11.1.1.9 version. I was on OHS 11.1.1.7

Solution
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For OHS 11.1.1.7 version you have to use Webgate 11.1.2.2.