Problem

-- an error occur when deploying any flow included in a specific Mapping Services project :

2020-10-06 16:14:51,414|ERROR|Worker-28 |ui.decorators.MSLightweightDecorator.addEngineVersionDecoration:133 - Problem to find engine version information for project XXXXX
org.eclipse.core.runtime.CoreException: com.axway.ms.binding.xml.serializer.XmlFormatterException: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 2; The markup in the document preceding the root element must be well-formed.
at com.axway.ms.business.resource.ResourceFactory.collectException(ResourceFactory.java:731)

Resolution

* it is likely that the cause of the file project.ms located in the project root

* make sure there is only one project file : keep project.ms and remove the others

* try to open it from Mapping Services using the Project Editor (default editor when double clicking)

* if you cannot open it using the default editor, use the text editor, and make sure the file is well formed

* if the project file cannot be fixed, create a new Mapping Service project and copy the objects to this new project