I have two shorelines and baseline which were created in accordance with the necessary rules such as attributes, coordinate system etc. All data in a personal geodatabase for DSAS analysis. The problem is that neither the shorelines nor the baseline appear in Set Default Parameters. Where am I making the mistake?
I had the exact same problem and I tried both solutions (ticking the extensions box for DSAS and remaking the feature class in the mdb), but neither solved this issue.
I was able to find a solution after playing around with the sample data they provide. Their shoreline feature class was made up of "Polyline M" files, whereas mine were only polylines (you can find this under the shape field in the attribute table). I remade my feature class and made sure to click the box next to "Coordinates include M values".
This fixed the problem of disappearing shoreline fc and allowed me to calculate the shorelines change. Hope this helps you!
Make sure to create all features classes (fc) directly in the mdb. The first time I tried, I imported the fc from the GDB to the mdb, and still DSAS didn't recognize them.
Therefore, I created the fc in the mdb and started an edit session. I just selected the features in the previous fc and paste it in the new one. It worked!