AlistGo/alist · error

%s must not be empty

Error message

%s must not be empty

What it means

Error "%s must not be empty" thrown in AlistGo/alist.

Source

Thrown at server/webdav/xml.go:152

}

// http://www.webdav.org/specs/rfc4918.html#ELEMENT_prop (for propfind)
type propfindProps []xml.Name

// UnmarshalXML appends the property names enclosed within start to pn.
//
// It returns an error if start does not contain any properties or if
// properties contain values. Character data between properties is ignored.
func (pn *propfindProps) UnmarshalXML(d *ixml.Decoder, start ixml.StartElement) error {
	for {
		t, err := next(d)
		if err != nil {
			return err
		}
		switch t.(type) {
		case ixml.EndElement:
			if len(*pn) == 0 {
				return fmt.Errorf("%s must not be empty", start.Name.Local)
			}
			return nil
		case ixml.StartElement:
			name := t.(ixml.StartElement).Name
			t, err = next(d)
			if err != nil {
				return err
			}
			if _, ok := t.(ixml.EndElement); !ok {
				return fmt.Errorf("unexpected token %T", t)
			}
			*pn = append(*pn, xml.Name(name))
		}
	}
}

// http://www.webdav.org/specs/rfc4918.html#ELEMENT_propfind
type propfind struct {

View on GitHub (pinned to 843d9dc814)

Solutions

1. Ensure the referenced value is configured and non-empty, then retry the operation.

When it happens

Trigger: Thrown at server/webdav/xml.go:152 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of AlistGo/alist@843d9dc814 (2026-08-15). Data as JSON: /api/errors/f7704f36fda03c6d. Report an issue: GitHub.