Checking if your kit is complete...
Looks good
Writing Makefile for Data::TreeDumper::Renderer::GTK
cp GTK.pm blib\lib\Data\TreeDumper\Renderer\GTK.pm
AutoSplitting blib\lib\Data\TreeDumper\Renderer\GTK.pm (blib\lib\auto\Data\TreeDumper\Renderer\GTK)
cp gtk_test.pl blib\lib\Data\TreeDumper\Renderer\gtk_test.pl
	D:\cpanrun\build\5-6-1\bin\perl.exe -Iblib\arch -Iblib\lib -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-6-1\lib test.pl
1..1Can't locate Data/TreeDumper.pm in @INC (@INC contains: blib\arch blib\lib d:\cpanrun\build\5-6-1\lib d:\cpanrun\build\5-6-1\lib D:\cpanrun\depot\main\Apps\CPAN_Run\lib D:/cpanrun/build/5-6-1/lib D:/cpanrun/build/5-6-1/site/lib .) at blib\lib/Data/TreeDumper/Renderer/GTK.pm line 17.
BEGIN failed--compilation aborted at blib\lib/Data/TreeDumper/Renderer/GTK.pm line 17.
Compilation failed in require at test.pl line 10.
BEGIN failed--compilation aborted at test.pl line 10.
NMAKE : fatal error U1077: 'D:\cpanrun\build\5-6-1\bin\perl.exe' : return code '0x2'
Stop.