Rudder

I upgraded from 2.11nightly to 3.1nightly, on SLES11, and promises were no regenerated - it prevented reporting from happening
Event logs show

49    2015-12-07 18:49    rudder    Application started    Rudder starts
48    2015-12-07 18:49    rudder    Policy update started automatically    Automatically update policies

I also got the following errors in the logs

[2015-12-07 18:49:11] WARN  com.normation.rudder.services.policies.nodeconfig.LdapNodeConfigurationCacheRepository - Ignoring following node configuration cache info because of deserialisation error: {"id":{"val
ue":"4703e34e-feaa-4653-8d13-f4bb7eaebf5b"},"writtenDate":"2015-12-07T17:41:43.295Z","nodeInfoCache":1426327174,"parameterCache":-2085047362,"nodeContextCache":-1541259392,"policyCache":[{"ruleId":{"value":"inve
ntory-all"},"draftId":{"value":"inventory-all@@inventory-all"},"cacheValue":-765781656},{"ruleId":{"value":"dc99a03f-4752-4850-9a98-f67c4e4b2cba"},"draftId":{"value":"dc99a03f-4752-4850-9a98-f67c4e4b2cba@@796725
8f-04cc-475e-b5bb-18f89c0cc5ef"},"cacheValue":316328241},{"ruleId":{"value":"dc99a03f-4752-4850-9a98-f67c4e4b2cba"},"draftId":{"value":"dc99a03f-4752-4850-9a98-f67c4e4b2cba@@9e926b89-d2d2-48f2-9f97-b56e1534ccc1" 
},"cacheValue":-1440161808},{"ruleId":{"value":"hasPolicyServer-root"},"draftId":{"value":"hasPolicyServer-root@@common-root"},"cacheValue":768346630},{"ruleId":{"value":"32377fd7-02fd-43d0-aab7-28460a91347b"}," 
draftId":{"value":"32377fd7-02fd-43d0-aab7-28460a91347b@@5580ad5c-81a7-4fc8-880e-39a5d343c5c8"},"cacheValue":-1182879005}]}
net.liftweb.json.MappingException: Parsed JSON values do not match with class constructor
args=
arg types=
constructor=public com.normation.rudder.services.policies.nodeconfig.NodeConfigurationCache(com.normation.inventory.domain.NodeId,scala.Option,int,int,int,scala.collection.immutable.Set)