Projection

MarcelSt-Germain

Hi, 

I work with a project since pro 2,5.  Beginning at 2,7 I start to have Transformation Warning without changing anything.  

Anyway, I doesn't understand how to fix this.  I saw that more transformation are available in my Esri but, no way to find them.  Help please.

 

JayantaPoddar

Esri recognizes most of the coordinate systems by EPSG.

Looks like the data (GCS_WGS_1984) has been created in a non-Esri software, which ArcGIS Pro doesn't identify.

As mentioned by David, check the list of layers under the anomalous coordinate system from Map Properties > Coordinate System > Layers.

 

Using Define Projection, define the coordinate system of those layer(s) as 

  GCS_WGS_1984 (Geographic Coordinate System > World > WGS 1984).

 

Although the names are similar, the one you just defined is identified by ArcGIS Pro correctly.

Here is how the coordinate system of the Layer looked before and after executing Define Projection.

Before "Define Projection"

 

After "Define Projection"

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*Note: Sometimes the culprit layer(s) could have a projected coordinate system on top of its GCS. Here is one example that I have.

In Map Properties > Transformation

 

But, Under Coordinate Systems > Layers, there was no such Coordinate System

 

I tested one layer from each coordinate system, and found the culprit layer was having a coordinate system of "UTM_Zone_43_Northern_Hemisphere".