Removed duplicit map error debug output

src/GUI/app.cpp

@@ -7,6 +7,7 @@
 #include <QLibraryInfo>
 #include <QSurfaceFormat>
 #include <QImageReader>
+#include <QFileInfo>
 #ifdef Q_OS_ANDROID
 #include <QCoreApplication>
 #include <QJniObject>
@@ -154,10 +155,13 @@ void App::loadDatums()
 	QString ellipsoidsFile(ProgramPaths::ellipsoidsFile());
 	QString gcsFile(ProgramPaths::gcsFile());
 
-	if (ellipsoidsFile.isNull())
+	if (!QFileInfo::exists(ellipsoidsFile)) {
 		qWarning("No ellipsoids file found.");
-	if (gcsFile.isNull())
+		ellipsoidsFile = QString();
+	} if (!QFileInfo::exists(gcsFile)) {
 		qWarning("No GCS file found.");
+		gcsFile = QString();
+	}
 
 	if (!ellipsoidsFile.isNull() && !gcsFile.isNull()) {
 		Ellipsoid::loadList(ellipsoidsFile);
@@ -170,8 +174,9 @@ void App::loadPCSs()
 {
 	QString pcsFile(ProgramPaths::pcsFile());
 
-	if (pcsFile.isNull())
+	if (!QFileInfo::exists(pcsFile)) {
 		qWarning("No PCS file found.");
-	else
+		qWarning("Maps based on a projection different from EPSG:3857 won't work.");
+	} else
 		PCS::loadList(pcsFile);
 }

src/GUI/gui.cpp

@@ -137,11 +137,8 @@ TreeNode<MapAction*> GUI::createMapActionsNode(const TreeNode<Map*> &node)
 			MapAction *a = new MapAction(map, _mapsActionGroup);
 			connect(a, &MapAction::loaded, this, &GUI::mapInitialized);
 			tree.addItem(a);
-		} else {
+		} else
-			qWarning("%s: %s", qPrintable(map->path()),
-			  qPrintable(map->errorString()));
 			delete map;
-		}
 	}
 
 	return tree;

src/map/maplist.cpp

@@ -80,7 +80,6 @@ Map *MapList::loadFile(const QString &path, const Projection &proj, bool *isDir)
 				errors.append(it.key() + ": " + map->errorString());
 			++it;
 		}
-
 	} else {
 		for (it = _parsers.begin(); it != _parsers.end(); it++) {
 			map = it.value()(path, proj, isDir);