Why Can't I Use Calculate Geometry

[KalenEyre]

I have made an intersect with a raster I converted to a polygon and a buffer I made from a line feature. I would like to calculate the area of this intersect but am unable to do so. Would anyone know why this is this the case and anyway to solve the issue?

[DanPatterson · Accepted solution]

You can't calculate geometry into a Shape_area field if that is what you are trying since shape_length and shape_area are controlled by the geodatabase.

If your data are in decimal degrees, add a new field (double type) and use 

Calculate Geometry Attributes (Data Management)—ArcGIS Pro | Documentation

there, preferably specifying a useful projected coordinate system to get your areas in planar units

[KalenEyre]

This worked!! Thank you!!