In the new project Unity, this error occurs as soon as I try to add a script. VS2017 unit also does not see, I do not know, or it is somehow connected. In the old project everything seems to be working fine, so far only the new ones have this error.
XmlException: expected ';' (3B) but found '/' (2F) Line 58, position 39. Mono.Xml2.XmlTextReader.Expect (Int32 expected) Mono.Xml2.XmlTextReader.ReadEntityReference (Boolean ignoreEntityReferences) Mono.Xml2.XmlTextReader.ReadReference (Boolean ignoreEntityReferences) Mono.Xml2.XmlTextReader.ReadText (Boolean notWhitespace) Mono.Xml2.XmlTextReader.ReadContent () Mono.Xml2.XmlTextReader.Read () System.Xml.XmlTextReader.Read () Mono.Xml.XmlFilterReader.Read () System.Xml.Linq.XElement.LoadCore (System.Xml.XmlReader r, LoadOptions options) System.Xml.Linq.XNode.ReadFrom (System.Xml.XmlReader r, LoadOptions options) System.Xml.Linq.XContainer.ReadContentFrom (System.Xml.XmlReader reader, LoadOptions options) System.Xml.Linq.XElement.LoadCore (System.Xml.XmlReader r, LoadOptions options) System.Xml.Linq.XNode.ReadFrom (System.Xml.XmlReader r, LoadOptions options) System.Xml.Linq.XContainer.ReadContentFrom (System.Xml.XmlReader reader, LoadOptions options) System.Xml.Linq.XDocument.LoadCore (System.Xml.XmlReader reader, LoadOptions options) System.Xml.Linq.XDocument.Load (System.IO.TextReader reader, LoadOptions options) System.Xml.Linq.XDocument.Parse (System.String s, LoadOptions options) System.Xml.Linq.XDocument.Parse (System.String s) SyntaxTree.VisualStudio.Unity.Bridge.ProjectFilePostprocessor.OnGeneratedCSProject (System.String path, System.String content) System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222) 