Removed error if fs-base-genericairports is missing.

Author: albar965

src/fs/navdatabase.cpp

@@ -1403,10 +1403,13 @@ void NavDatabase::readSceneryConfigMsfs(atools::fs::scenery::SceneryCfg& cfg)
   // Get version numbers from manifest - needed to determine record changes for SID and STAR
   manifest.clear();
   manifest.read(options->getMsfsOfficialPath() % SEP % "fs-base-genericairports" % SEP % "manifest.json");
-  areaGeneric.setMinGameVersion(manifest.getMinGameVersion());
-  areaGeneric.setPackageVersion(manifest.getPackageVersion());
 
-  cfg.appendArea(areaGeneric);
+  if(manifest.isValid())
+  {
+    areaGeneric.setMinGameVersion(manifest.getMinGameVersion());
+    areaGeneric.setPackageVersion(manifest.getPackageVersion());
+    cfg.appendArea(areaGeneric);
+  }
 
   // fs-base-nav ======================================================
   SceneryArea areaNav(areaNum++, tr("Base Navigation"), "fs-base-nav");

src/fs/scenery/manifestjson.cpp

@@ -67,6 +67,7 @@ void ManifestJson::read(const QString& filename)
       packageVersion = obj.value("package_version").toString();
       minGameVersion = obj.value("minimum_game_version").toString();
       file.close();
+      valid = true;
     }
     else
       qWarning() << Q_FUNC_INFO << "Cannot open file" << filename << file.errorString();
@@ -91,6 +92,17 @@ bool ManifestJson::isScenery() const
          contentType.compare("MISSION", Qt::CaseInsensitive) != 0;
 }
 
+void ManifestJson::clear()
+{
+  contentType.clear();
+  title.clear();
+  manufacturer.clear();
+  creator.clear();
+  packageVersion.clear();
+  minGameVersion.clear();
+  valid = false;
+}
+
 } // namespace scenery
 } // namespace fs
 } // namespace atools

src/fs/scenery/manifestjson.h

@@ -81,18 +81,17 @@ class ManifestJson
     return minGameVersion;
   }
 
-  void clear()
+  void clear();
+
+  /* True if file exists and was read */
+  bool isValid() const
   {
-    contentType.clear();
-    title.clear();
-    manufacturer.clear();
-    creator.clear();
-    packageVersion.clear();
-    minGameVersion.clear();
+    return valid;
   }
 
 private:
   QString contentType, title, manufacturer, creator, packageVersion, minGameVersion;
+  bool valid = false;
 
 };