This is just a quick note so that others don't fall to the same error as I did, or if they do, they would find this meditation.

I was trying to install the Tk module from the cpan shell, and got test failures.

I've now found out why. When the test run, they try to pop up Tk windows to the screen. If there is no X display, it can't do that. So the fix very simple: run the cpan command from an xterm (not from the console) so that it would find the X display. When I did that, it installed cleany.

In reply to To install Tk, you need an X display by ambrus

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