@alim  I am trying to configure git with the NIFI registry installation on windows(running bat script). I configured my GitFlowPersistanceProvider based on the details provided above and getting following error, can you please help me resolve this error.     Failed to start web server: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'accessPolicyResource' defined in file [C:\Users\ymathiva\Desktop\DnAPilotHub\Installs\nifi-registry-0.4.0-bin\nifi-registry-0.4.0\work\jetty\nifi-registry-web-api-0.4.0.war\webapp\WEB-INF\classes\org\apache\nifi\registry\web\api\AccessPolicyResource.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'authorizationService' defined in URL [jar:file:/C:/Users/ymathiva/Desktop/DnAPilotHub/Installs/nifi-registry-0.4.0-bin/nifi-registry-0.4.0/work/jetty/nifi-registry-web-api-0.4.0.war/webapp/WEB-INF/lib/nifi-registry-framework-0.4.0.jar!/org/apache/nifi/registry/service/AuthorizationService.class]: Unsatisfied dependency expressed through constructor parameter 2; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'registryService' defined in URL [jar:file:/C:/Users/ymathiva/Desktop/DnAPilotHub/Installs/nifi-registry-0.4.0-bin/nifi-registry-0.4.0/work/jetty/nifi-registry-web-api-0.4.0.war/webapp/WEB-INF/lib/nifi-registry-framework-0.4.0.jar!/org/apache/nifi/registry/service/RegistryService.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'getFlowPersistenceProvider' defined in class path resource [org/apache/nifi/registry/provider/StandardProviderFactory.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.nifi.registry.flow.FlowPersistenceProvider]: Factory method 'getFlowPersistenceProvider' threw exception; nested exception is org.apache.nifi.registry.provider.ProviderFactoryException: Error creating FlowPersistenceProvider with class name: org.apache.nifi.registry.provider.flow.GitFlowPersistenceProvider Shutting down... ... View more

@pvidal I am trying to configure git with the NIFI registry installation on windows(running bat script). I configured my GitFlowPersistanceProvider based on the details provided above and getting following error, can you please help me resolve this error.     Failed to start web server: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'accessPolicyResource' defined in file [C:\Users\ymathiva\Desktop\DnAPilotHub\Installs\nifi-registry-0.4.0-bin\nifi-registry-0.4.0\work\jetty\nifi-registry-web-api-0.4.0.war\webapp\WEB-INF\classes\org\apache\nifi\registry\web\api\AccessPolicyResource.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'authorizationService' defined in URL [jar:file:/C:/Users/ymathiva/Desktop/DnAPilotHub/Installs/nifi-registry-0.4.0-bin/nifi-registry-0.4.0/work/jetty/nifi-registry-web-api-0.4.0.war/webapp/WEB-INF/lib/nifi-registry-framework-0.4.0.jar!/org/apache/nifi/registry/service/AuthorizationService.class]: Unsatisfied dependency expressed through constructor parameter 2; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'registryService' defined in URL [jar:file:/C:/Users/ymathiva/Desktop/DnAPilotHub/Installs/nifi-registry-0.4.0-bin/nifi-registry-0.4.0/work/jetty/nifi-registry-web-api-0.4.0.war/webapp/WEB-INF/lib/nifi-registry-framework-0.4.0.jar!/org/apache/nifi/registry/service/RegistryService.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'getFlowPersistenceProvider' defined in class path resource [org/apache/nifi/registry/provider/StandardProviderFactory.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.nifi.registry.flow.FlowPersistenceProvider]: Factory method 'getFlowPersistenceProvider' threw exception; nested exception is org.apache.nifi.registry.provider.ProviderFactoryException: Error creating FlowPersistenceProvider with class name: org.apache.nifi.registry.provider.flow.GitFlowPersistenceProvider Shutting down... ... View more

@vamsi valiveti I have found Learning spark to be very helpful for the beginners. https://www.oreilly.com/library/view/learning-spark/9781449359034/ ... View more