As the methods, representing the operations, had their parameters named as their type when the parameter type was an existing known class, it generated errors as we had multiple parameters with the same name (ex: login(StructString $_structString,StructString $_structString), which is conflictual). This was used to generate the sample file easily. This issue was fixed by naming the parameters with their real name (when there is multiple parameters) and by reviewing the sample file generation.