No root element exists since the schema provided has no global elements

Symptom

The UML to XSD transform generates XML schema files from UML models.

Attempts to generate XML files from XSD files, using the context menu Generate > XML results in the error:

No root element exists since the schema provided has no global elements.

Steps to reproduce:

1. Create a new UML Model
   
   
2. Apply the XSD Profile:
   
   2.1. Select the model
   2.2. Look at the Properties->Profiles
   2.3. Add profile... Select profile->Deployed profile->XSD Transformation
   
3. If the above step is not possible, make sure to enable the Capabilities:
   XSD Transformation profile
   Web Service Developer
   
4. Add a UML Package "Catalog" and apply the stereotype <<schema>> from XSDProfile
   
   
5. Add a class Book to the package and apply the stereotype <<complexType>> from XSDprofile
   
   
6. Add an attribute Author to the class and set the type as string (from XSD Data Types)
   
   
7. Add an attribute Title to the class and set the type as string (from XSD Data Types)
   
   
8. Save the model
   
   
9. Create a new transformation configuration called MyTransform.tc:
   8.1. Modeling->Tranform->New Configuration
   8.2. Service Oriented Architecture->UML to XSD
   8.3 Select the Model top-level package as source and the UML Project as target
   
   
10. Run the transformation:
    9.1. Right click on MyTransform.tc and choose
    9.2. Transform->UML to XSD
    
    
11. Open the generated file Catalog.xsd:
    <?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsd_1="http://Catalog/" targetNamespace=" http://Catalog/">
    
    
12. Right click on schema and choose: Validate. There will be no error
    
    
13. Right click on the file and choose Generate->XML File...
    
    You will see the error: