nginx and opentelemetry-webserver-sdk : unable to start nginx due to error "libopentelemetry_webserver_sdk.so: cannot open shared object file: No such file or directory"

[PsychicMushrooms]

Hi all,
I'm trying to get nginx 1.22.1 started on centos 8 in order to test the "Nginx v1.0.3 release of otel-webserver-module" as described here which connects to the Otel Collector:
https://github.com/open-telemetry/opentelemetry-cpp-contrib/tree/main/instrumentation/otel-webserver-module#platform-supported-1
but keep getting this error :
nginx[1470]: nginx: [emerg] dlopen() "/opt/opentelemetry-webserver-sdk/WebServerModule/Nginx/1.23.1/ngx_http_opentelemetry_module.so" failed (libopentelemetry_webserver_sdk.so: cannot open shared object file: No such file or directory) in /etc/nginx/nginx.conf:9

I have exported the LD_LIBRARY_PATH environment variable and /opt/opentelemetry-webserver-sdk has permissions 777 set recursively too, but still no joy.
ie.
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/opentelemetry-webserver-sdk/sdk_lib/lib
nginx.conf.txt