Re: [rules-users] Error using 5.5.1 built with 5.5.0 Final jars

Well, both projects bring in dependencies from other projects, not all of which are Drools projects. In your project (or one of its dependent Jars), there is a class with serialVersionUID: 8537626313322861096. Find it and replace it with the same version that Guvnor is using. To avoid these issues, use Maven to build your project so that you import the correct dependencies. Without that, you're going to keep having these problems. Steve On 8 Apr 2013, at 12:34, abhinay_agarwal <abhinay_agarwal(a)infosys.com&gt; wrote: