show import project error message in gui

Author: ludviggunne

gui/mainwindow.cpp

@@ -1990,6 +1990,12 @@ void MainWindow::analyzeProject(const ProjectFile *projectFile, const QStringLis
                 break;
             }
 
+            if (!p.errors.empty())
+                errorMessage += ": \n";
+
+            for (const auto &error : p.errors)
+                errorMessage += "\n - " + tr(error.c_str());
+
             if (!errorMessage.isEmpty()) {
                 QMessageBox msg(QMessageBox::Critical,
                                 tr("Cppcheck"),