I am trying to define a custom CRS based on Equal Earth Projection (As described here) in QGIS (Settings >> Custom Projections >> + [Add new CRS] >> Entering Proj String [+proj=eqearth +datum=WGS84 +wktext] >> OK). The validation of the Proj String goes fine; however, after pressing OK it gives the following error message.

Cannot save' * Generated CRS (+proj=aeqd +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 + datum=WGS84 + units= m + no_defs)' 
— this Proj string definition is identical to ESRI:54032.
Try changing the CRS definition to a WKTformat instead.

Error Message when trying to define Equal Earth Projection

I thought that probably ESRI:54032 and Equal Earth maybe the same thing. But when I change my map projection to ESRI:5432, it does not looks like Equal Earth Projections.

Are the Equal Earth and ESRI:54032 the same? If not, how can I define the Equal Earth projection in QGIS?

I am using QGIS 3.12 (64 bit) on Windows 10. Detailed specification about QGIS and related libraries is here.

Detailed specification about QGIS

A similar question already exists but neither the question nor the answers address the problem I have described.

  • 1
    In the steps description says that you entered the +proj=eqearth +datum=WGS84 +wktext PROJ string, but in the screenshot there is another string (about an azimuthal equidistant projection). Is QGIS changing the input string? Feb 29 '20 at 23:04
  • Well! I didn't notice it before. However, I entered the same PROJ string as I mentioned here (Please see the validation step). QGIS changes the text itself when I press OK as you are seeing in the screenshot after pressing OK.
    – datakeen
    Feb 29 '20 at 23:10
  • 2
    I have not a QGIS 3.12 install to test it, but in QGIS 3.10 the message says that the CRS definition is the same as EPSG:8857 CRS (true). If you think that everyone with QGIS 3.12 will be able to reproduce that "change of string", please report it as a bug. Feb 29 '20 at 23:43
  • Try EPSG:8857 it is already defined in QGIS. Mar 2 '20 at 12:25
  • I have the same problem with the projection definition and text change Apr 14 '20 at 17:30

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