Hi Tiago,
This is identified as a known issue in IS 4.2.3 in KBA 2110378:
http://service.sap.com/sap/support/notes/2110378
I have seen this problem before and it can be caused by the <qualified_table_name> and <table_name> values in the exported view xml. The problem is that these incorrectly include the project name e.g.
<qualified_table_name>Views.My Project.my_view</qualified_table_name>
<table_name>My Project.my_view</table_name>
If this is the case, you should be able to workaround the issue by editing the xml within the exported zip file to the following:
<qualified_table_name>Views.my_view</qualified_table_name>
<table_name>my_view</table_name>
Regards
Nigel