diff --git a/packages/mindplot/src/components/export/TxtExporter.ts b/packages/mindplot/src/components/export/TxtExporter.ts
index 144b510e..2b45e548 100644
--- a/packages/mindplot/src/components/export/TxtExporter.ts
+++ b/packages/mindplot/src/components/export/TxtExporter.ts
@@ -1,5 +1,5 @@
-import Exporter from "src/components/export/Exporter";
-import Mindmap from "src/components/model/Mindmap";
+import Exporter from "./Exporter";
+import Mindmap from "../model/Mindmap";
 
 
 class TextExporter implements Exporter {
diff --git a/packages/mindplot/src/components/model/FeatureModelFactory.js b/packages/mindplot/src/components/model/FeatureModelFactory.ts
similarity index 60%
rename from packages/mindplot/src/components/model/FeatureModelFactory.js
rename to packages/mindplot/src/components/model/FeatureModelFactory.ts
index 125ab9ac..8f871c09 100644
--- a/packages/mindplot/src/components/model/FeatureModelFactory.js
+++ b/packages/mindplot/src/components/model/FeatureModelFactory.ts
@@ -2,41 +2,36 @@ import { $assert } from '@wisemapping/core-js';
 import IconModel from './IconModel';
 import LinkModel from './LinkModel';
 import NoteModel from './NoteModel';
+import FeatureModel from './FeatureModel';
 
-const FeatureModelFactory = {
-  Icon: {
+class FeatureModelFactory {
+
+  private static modelById = [{
     id: IconModel.FEATURE_TYPE,
     model: IconModel,
-  },
-
-  Link: {
+  }, {
     id: LinkModel.FEATURE_TYPE,
     model: LinkModel,
-  },
-
-  /** the note object */
-  Note: {
+  }, {
     id: NoteModel.FEATURE_TYPE,
     model: NoteModel,
-  },
+  }] as const;
 
-  createModel(type, attributes) {
+  static createModel(type: string, attributes): FeatureModel {
     $assert(type, 'type can not be null');
     $assert(attributes, 'attributes can not be null');
 
-    const { model: Model } = FeatureModelFactory._featuresMetadataById
+    const { model: Model } = FeatureModelFactory.modelById
       .filter((elem) => elem.id === type)[0];
     return new Model(attributes);
-  },
+  }
   /**
      * @param id the feature metadata id
      * @return {Boolean} returns true if the given id is contained in the metadata array
      */
-  isSupported(id) {
-    return FeatureModelFactory._featuresMetadataById.some((elem) => elem.id === id);
-  },
+  static isSupported(type: string): boolean {
+    return FeatureModelFactory.modelById.some((elem) => elem.id === type);
+  }
 };
 
-FeatureModelFactory._featuresMetadataById = [FeatureModelFactory.Icon, FeatureModelFactory.Link, FeatureModelFactory.Note];
-
 export default FeatureModelFactory;
diff --git a/packages/mindplot/test/unit/TxTExportTestSuite.test.ts b/packages/mindplot/test/unit/TxTExportTestSuite.test.ts
index ddc3b461..1a17bfe5 100644
--- a/packages/mindplot/test/unit/TxTExportTestSuite.test.ts
+++ b/packages/mindplot/test/unit/TxTExportTestSuite.test.ts
@@ -2,7 +2,7 @@ import TxtExporter from '../../src/components/export/TxtExporter';
 import Mindmap from '../../src/components/model/Mindmap';
 
 test('adds 1 + 2 to equal 3', () => {
-  const m = new Mindmap();
+  const m = new Mindmap(1);
  
   const exporter = new TxtExporter();
   console.log(exporter.export(m));
diff --git a/packages/mindplot/tsconfig.json b/packages/mindplot/tsconfig.json
index efef29bd..71cc099f 100644
--- a/packages/mindplot/tsconfig.json
+++ b/packages/mindplot/tsconfig.json
@@ -4,6 +4,7 @@
       "sourceMap": true,
       "noImplicitAny": false,
       "module": "es6",
+      "moduleResolution": "Node",
       "target": "es6",
       "allowJs": true,
       "esModuleInterop": true