# Replacement classes in ThinkGeo.Core 12.3.2

**URL:** <https://community.thinkgeo.com/t/replacement-classes-in-thinkgeo-core-12-3-2/9997>\
**Category:** ThinkGeo Cloud\
**Created:** [January 22, 2021, 10:57am UTC](https://community.thinkgeo.com/t/replacement-classes-in-thinkgeo-core-12-3-2/9997 "2021-01-22T10:57:39Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![MyAgDevTeam](https://community.thinkgeo.com/letter_avatar_proxy/v4/letter/m/eb8c5e/32.png) [@MyAgDevTeam](https://community.thinkgeo.com/u/MyAgDevTeam)\
**Post date:** [January 27, 2021, 5:52am UTC](https://community.thinkgeo.com/t/replacement-classes-in-thinkgeo-core-12-3-2/9997/5 "2021-01-27T05:52:51Z")

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Thanks,  
We are using .net5, Microsoft.SqlServer.Types is not supported in .NET Core.

Kindly suggest alternative which is supported in .NET Core.

We are using below code for **CloudFileFeatureLayer** and **LayerDefinition**.

LayerDefinition USTownshipAndRange = new LayerDefinition(“us\_twnshp”, new RectangleShape(-178.285802, 71.468274, -80.031491, 25.138416),  
GeographyUnit.DecimalDegree, 6, “[http://thinkgeo-giseditor-cloudfilelayers-dev.s3-website-us-east-1.amazonaws.com/us\_twnshp/](http://thinkgeo-giseditor-cloudfilelayers-dev.s3-website-us-east-1.amazonaws.com/us_twnshp/)”);  
CloudFileFeatureLayer layerUSTownshipAndRange = new CloudFileFeatureLayer(USTownshipAndRange);  
layerUSTownshipAndRange.FeatureSource.Projection = GetPLSSProjection();

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