Created an extension for here maps on thingworx 5.3 but while importing the extension on thingworx 6.6, below error occurs:

"metadata.xml file not found"

I have created metadata.xml file with necessary details manually, it got imported but in widgets here map is not shown.

 

<?xml version="1.0" encoding="UTF-8"?>

<Entities>

<ExtensionPackages>

<ExtensionPackage name="HereWidgets_ExtensionPackage"

description="Here Widgets"

vendor="ThingWorx Customer Service"

packageVersion="1.1.1"

minimumThingWorxVersion="4.1.0" />

</ExtensionPackages>

<Widgets>

<Widget name="Heremap">

<UIResources>

<!-- Studio ONLY -->

  <FileResource type="CSS" file="Heremap.ide.css" description="" isDevelopment="true" isRuntime="false" />

<FileResource type="JS" file="Heremap.ide.js" description="" isDevelopment="true" isRuntime="false" />

<FileResource type="JS" file="http://js.api.here.com/v3/3.0/mapsjs-service.js" description="" isDevelopment="true" isRuntime="false" />

<FileResource type="JS" url="http://js.api.here.com/v3/3.0/mapsjs-core.js" description="" isDevelopment="true" isRuntime="false" />

<!-- Runtime/Squeal ONLY -->

<FileResource type="CSS" file="Heremap.runtime.css" description="" isDevelopment="false" isRuntime="true" />

<FileResource type="JS" file="Heremap.runtime.js" description="" isDevelopment="false" isRuntime="true" />

<FileResource type="JS" file="http://js.api.here.com/v3/3.0/mapsjs-service.js" description="" isDevelopment="false" isRuntime="true" />

<FileResource type="JS" url="http://js.api.here.com/v3/3.0/mapsjs-core.js" description="" isDevelopment="false" isRuntime="true" />

</UIResources>

</Widget>

</Widgets>

</Entities>

 

Can anybody help or suggest any solution regarding the same?