change material folder

[Alex14]

Hello, everyone. a couple of weeks ago I built a house with various materials applied with archicad 15 in English.
later, for language problems, I uninstalled the English version and installed that in English.
but now opening the project realized with the English one no longer applies the materials and tells me missing objects 81 from archicad 15 library and attributes. then I thought I'd go to apply the material again but it doesn't show me the materials that have been installed with the Italian version. How do I do that?
Thank you.

 

[AginoA]

Try to do this.
1 open a new project with standard profile from the archive menu?open
2 from options>attributed element>man attributes ,material card, in the sx window select all materials with "select all" and with "add" copy them in the dx window
3 with "Save as" save a file *.aat
4 open the old project
5 always from the attribute manager amounts in the document the materials previously saved by recalling the *.aat file through the "open" command.