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I am trying to make a legend for a simple plot in *Mathematica* 8, but does not seem to recognise the command PlotLegends. I declared beforehand `Needs["PlotLegends`"]`

, and get this message:

Needs::nocont: Context PlotLegends` was not created when Needs was evaluated. >>

I also tried to install this pakage manually by going to File -> Install -> ....
I am not very experienced with *Mathematica*, so an answer for dummies will be appreciated.

Perhaps you have spelled the name of the package incorrectly. You get the same error message if you use a lowercase l or a double backtick quote instead of a single one. – Sjoerd C. de Vries – 2013-10-09T20:20:58.527

Try in a "fresh" kernel. First evaluate

`Quit`

to quit the kernel. Then immediately, evaluate`Needs["PlotLegends`"]`

. Do you still get this error message? If yes, your Mathematica installation is either broken, or you have accidentally installed something named "PlotLegends" into your`$UserBaseDirectory`

which is conflicting with loading the package that is bundled with Mathematica. Evaluate`$UserBaseDirectory`

to see where this location is, open it, and check that the`Applications`

folder doesn't contain anything named PlotLegends. If it doesn't then try reinstalling Mma. – Szabolcs – 2013-10-10T00:19:28.173