Adding a basemap at 10.1 changes the coordinate system of the data frame to Web Mercator (auxiliary sphere)

by Joe on July 3, 2012

In ArcGIS Desktop 10.1, adding a basemap in ArcMap using the Add Basemap dialog box causes the coordinate system of the data frame to change to WGS 1984 Web Mercator (auxiliary sphere).

This is a known issue, and bug number NIM081490 can be used to check for status updates. Esri is working on a permanent solution to this issue. In the meantime, please refer to the technical article, “Adding a basemap changes the coordinate system of the data frame to Web Mercator (auxiliary sphere),” for more information on the issue and a workaround.

Chris F. – User Advocacy Group

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2 Comments

  1. simon.ross says:

    I see it’s not currently listed as an SP1 fix. If it will help light a fire please vote for this to be fixed asap

    https://c.na9.visual.force.com/apex/ideaView?id=087E00000004JYa&returnUrl=%2Fapex%2FideaList%3Fc%3D09a300000004xET%26sort%3Drecent

    August 20, 2012 at 10:51 am