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It might contain a space or some character that ArcGIS or GeoRAS does not recognize, such as middle dashes, accents, “ñ”, etc. At last, the most common cause of this error is related to the path where the project is located in ArcGIS with all its elements/layers.The reference coordinate system it is not the same for all the elements/layers we used to create the HEC-RAS model, for example, the reference system of the Digital Elevation Model is ETRS_89_29N and the rest of the layers have the projection set to ETRS_89_30N.Some of the elements/layers with which we created the HEC-RAS model, were not well georeferenced (does not have a correct coordinate reference system).The following error may be encounter: “Failed to create intermediate ESRI XML file! Object reference not set to an instance of an Object.” The most common error that can appear when you try to export your HEC-RAS results (.sdf archive) using the Export RAS data tool to an xml file. In this exercise we will find out about the most frequent error which we can encounter while working with HEC-RAS and ArcGIS (via HEC-GeoRAS).
SPATIAL REFERENCE PROJECTION FILE HEC RAS SOFTWARE
While importing HEC-RAS data to ArcGIS (using GeoRAS), the appearance of errors is a common thing, the complex architecture of the software and the specific detailed input necessities, make the handling of this software seem difficult. The interface capabilities include operations like preparation, import and export data from HEC-RAS into ArcGIS, as well as processing of the exported HEC-RAS data. HEC-GeoRAS is a tool, that allows processing geospatial data in ArcGIS using a graphical user interface (GUI).