Error when install ign-math on Window10

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Hello everyone.I tried to install Gazebo on window10 following the tutorial on here http://gazebosim.org/tutorials?tut=in... But when I tried to configure ign-math ( step 9). It keeps saying the following error " Could not find a package configuration file provided by "ignition-cmake2" " I tried to clone ignition-cmake2 into folder "gz-ws" and configure it and succeeded. But ign-math still not worked. The same issue happen with ign-transport, it require ignition-cmake0. Could anyone help me. Thanks for reading