I've created a polygon by merging several polygons from the same layer using the merge option under Edit menu. Now I cannot buffer the resulting polygon. I tried repair geometry it didn't help. I'm getting an error message saying
WARNING 000117: Warning empty output generated. How can I solve this? The distance unit I used is meters. I'm using buffer tool. I set side type to "exclude polygon itself", method: planar and no dissolve.
EDIT: I can't buffer unmerged normal polygons either.
CRS EDIT: CRS of the current map: WGS 1984 Aux... CRS of the layer to be buffered: WGS 1984 Aux... (set when creating the feature class) CRS for the output set in the environments tab: WGS 1984 Aux...
NOTE: I'm using ArcGIS Pro 2.2.3.