A workmate has just set up a local liferay dxp 7.1 instance (hypersonic) and then tried to import a LAR file from another 7.1 instance.
For me it worked (postgres), he's getting an error regarding a missing field:
No such field com.liferay.portal.model.impl.GroupImpl._originalName
---- Debugging information ----
message : No such field
com.liferay.portal.model.impl.GroupImpl._originalName
field : _originalName
class : com.liferay.portal.model.impl.GroupImpl
required-type : com.liferay.portal.model.impl.GroupImpl
converter-type : com.thoughtworks.xstream.converters.reflection.ReflectionConverter
path : /StagedGroup/_group/_originalName
line number : 32 class[1] : com.liferay.site.internal.model.adapter.StagedGroupImpl
version : 1.4.10
Since tickets are always time consuming I'd like to ask here first wether anyone has any hint regarding the underlying problem...
It's hard to say based on the limited information you've provided. Here are few things to double-check:
If those are in place and you still have the issue, open a support ticket.
I don't think this is a DB related issue but to rule that out you can switch your instance to hypersonic and try the import.