Occurrence
Selecting multiple regions and applying the Extract Nodes tool.
Solution
Are you are trying to extract nodes from a rectangle, ellipse or rounded rectangle map object? This error message will be displayed if this is the case.
In MapInfo these shapes are not treated as true map objects as they are technically only defined by two points. This means that some functionality such as extracting nodes is unable to be performed
on these map objects. Convert these shapes to regions (Objects > Convert to regions) and then run the Extract nodes utility.
