	Product(s):	StormCAD, CivilStorm, SewerGEMS, SewerCAD
	Version(s):	10.00.00.40 and earlier
	Environment:	N\A
	Area:	Data Input/Model Creation

Problem

The following error message is generated when trying to import an InRoads SDB file into a storm/sewer product:

"Item has already been added. Key in dictionary: 'DUMMY INLET' Key being added: 'DUMMY INLET'".
"Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index"

Solution

This issue has been resolved in a patch for version 10.00.00.40, and fixed in version 10.00.00.45 and later of storm/sewer products. It is recommended that you download the latest build of the storm/sewer products. This link has instructions on downloading the products.
This may occur if the Inroads network has one or more instances of a pipe with two upstream pipes coming into it, but with the upstream node not set to "Y_JUNC". Correct this and the file should import.