Not able tp update Nuget version Error "Cannot modify an evaluated object originating"

When I am trying to install latest version 10.0.3 of NewtonSoft.Json I get the error

Cannot modify an evaluated object originating in an imported file ""C:\code2\<my repo>\src\DassFHLSFApp1\packages\XX.XXXX.Core.1.0.126\build\XX.XXXX.Core.props"." 

and it refers to another package's props file.

Any idea why am getting this error and ho to fix this