Error: Unloading the tool
The Shapefile to Coverage tool in ArcToolbox or ArcCatalog processes 50% of the shapefile and then stops with this message:
An error occured while running 'Shapefile to Coverage'
Unloading the tool
The shapefile contains a shape type 0, which represents a geometry-less shape. Coverage format has no corresponding feature type, so these types of shapes will not be converted.
Solution or Workaround
Remove type 0 shapes from the shapefile with ArcMap.
B. On the Editor toolbar, click Editor > Start Editing.
C. Click the Edit tool and drag a box to select all the features.
D. Right-click the layer name in the table of contents and click Open Attribute Table.
E. Records that are not highlighted are geometry-less records. Select the records that are not highlighted and delete them.
F. Repeat steps C and E until all of the geometry-less records are removed.
G. Click Editor > Stop Editing. Click YES to save edits.