Indicate unresolved reference to library block
This block indicates an unresolved reference to a library block (see Linked Blocks). You can use this block's parameter dialog box to fix the reference to point to the actual location of the library block.
Description of the cause of the unresolved link. You can customize this description to include URLs as follows:
library1is the name of the library for which you want to change the description, and
libraryinfois the property that provides the description of the unresolved link.
Path of the library block that this link represents. To fix a bad link, edit this field to reflect the actual path of the library block. Then select Apply or OK to apply the fix and close the dialog box.
Type of library block that this link represents.