Checking the unzip result

src/adaptors/UBImportDocument.cpp

@@ -175,11 +175,15 @@ UBDocumentProxy* UBImportDocument::importFile(const QFile& pFile, const QString&
 
     QString documentRootFolder = expandFileToDir(pFile, path);
 
+	if(!documentRootFolder.length()){
+		UBApplication::showMessage(tr("Import of file %1 failed.").arg(fi.baseName()));
+		return 0;
+	}
+	else{
 		UBDocumentProxy* newDocument = UBPersistenceManager::persistenceManager()->createDocumentFromDir(documentRootFolder);
-
 		UBApplication::showMessage(tr("Import successful."));
-
 		return newDocument;
+	}
 }