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I am trying to follow the standard QGIS tutorial for Swellendam based on QGIS version 2. Specifically the chapter which address coordinate systems

If I go to a layer and try to re-project it from WGS 84 to WGS 84 / UTM zone 34 S it shows that my data (purple square) is somewhere south of North Africa in the sea. Obviously if I set the CRS all my measurements gets messed up.

How do I proceed or do I only set the project CRS? Please try and explain the reasoning behind this.

Projection details


Using Version 3.2 Windows 10

marked as duplicate by Ian Turton Oct 13 '18 at 11:48

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    You are attempting to define a layer's projection rather than projecting it. To change your layer crs, you can 'Save Vector Layer as' and choose the new crs there. – FSimardGIS Oct 12 '18 at 21:35