Fix wrong string

android/src/main/java/com/reactlibrary/RNThumbnailModule.java

@@ -41,7 +41,7 @@ public class RNThumbnailModule extends ReactContextBaseJavaModule {
     retriever.setDataSource(filePath);
     Bitmap image = retriever.getFrameAtTime(1000000, MediaMetadataRetriever.OPTION_CLOSEST_SYNC);
 
-    String fullPath = Environment.getExternalStorageDirectory().getAbsolutePath() + '/thumb';
+    String fullPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/thumb";
 
     try {
       File dir = new File(fullPath);

package.json

@@ -1,7 +1,7 @@
 
 {
   "name": "react-native-thumbnail",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "description": "",
   "main": "index.js",
   "scripts": {