Rudder

On a freshly installed Rudder 2.4 nightly snapshot, when I try to import archives from the Administration > Archives screen, I get an error in the UI:

After trying a "Global Archives" restore, I see this in the webapp's log on disk:

23:48:04.578 [qtp1401888126-66] INFO  com.normation.rudder.repository.xml.ItemArchiveManagerImpl - Importing full archive with id 'd1e71dc5902a5d725c4bbf59061760a2a9cec7d8'
23:48:04.578 [qtp1401888126-66] INFO  com.normation.rudder.repository.xml.ItemArchiveManagerImpl - Importing rules archive with id 'd1e71dc5902a5d725c4bbf59061760a2a9cec7d8'
23:48:04.750 [qtp1401888126-66] INFO  com.normation.rudder.repository.xml.ItemArchiveManagerImpl - Importing technique library archive with id 'd1e71dc5902a5d725c4bbf59061760a2a9cec7d8'
23:48:04.759 [qtp1401888126-66] ERROR com.normation.rudder.web.snippet.administration.Archives - Error when importing groups, Directive library and Rules. <- Error when unserializing category for file 'directives/category.xml' <- Entry type is not a policyLibraryCategory: <activeTechniqueCategory fileFormat="2">
  <id>Active Techniques</id>
  <displayName>Root of active techniques's library</displayName>
  <description>
    This is the root category for active techniques. It contains subcategories, actives techniques and directives
  </description>
  <isSystem>true</isSystem>
</activeTechniqueCategory>
23:48:04.760 [qtp1401888126-66] ERROR com.normation.rudder.web.snippet.administration.Archives - 

When trying to restore just groups, I see this:

23:49:00.147 [qtp1401888126-67] INFO  com.normation.rudder.repository.xml.ItemArchiveManagerImpl - Importing groups archive with id '29bd20f64e19a69c8a877544572dac577f84d8f3'
23:49:00.149 [qtp1401888126-67] ERROR com.normation.rudder.web.snippet.administration.Archives - Error when importing groups. <- No file were found at path 'groups/category.xml'
23:49:00.149 [qtp1401888126-67] ERROR com.normation.rudder.web.snippet.administration.Archives - 

And when trying to restore just Directives, I see this:

23:48:56.974 [qtp1401888126-63] INFO  com.normation.rudder.repository.xml.ItemArchiveManagerImpl - Importing technique library archive with id '29bd20f64e19a69c8a877544572dac577f84d8f3'
23:48:56.977 [qtp1401888126-63] ERROR com.normation.rudder.web.snippet.administration.Archives - Error when importing Directive library. <- The directory 'directives/' does not contain 'directives/category.xml' or 'directives/activeTechniqueSettings.xml' and should not have been considered
23:48:56.977 [qtp1401888126-63] ERROR com.normation.rudder.web.snippet.administration.Archives - 

This may be several different bugs, I don't know - if so feel free to create extra tickets.