之所以会发生这种情况，是因为随机森林代码对32位和64位计算机上的索引使用了不同的类型.不幸的是，这只能通过检查随机森林代码来解决.由于几个scikit-learn开发人员都是正在为此工作，所以我把它在待办事项列表上.

This occurs because the random forest code uses different types for indices on 32-bit and 64-bit machines. This can, unfortunately, only be fixed by overhauling the random forests code. Since several scikit-learn devs are working on that anyway, I put it on the todo list.

目前，培训和测试机的指针大小必须相同.

For now, the training and testing machines need to have the same pointer size.