按照下面的步骤操作，报错

Importing a Tree from the Variable Selection Node

You can import the tree for a binary target that was created from the Chi-square selection criterion of the Variable Selection node into the Tree node. You can then view the tree in the Results Browser of the Tree node. You can also train the remainder of the tree in interactive mode. To import the tree and view the results in the browser, follow these steps:
          1、Add a Variable Selection node to the process flow.
          2、Set the Selection criterion to Chi-square in the Target Associations tab.
          3、Select the Settings button and set the desired Chi-square options, or use the default settings.
          4、Run the Variable Selection node.
          5、Add a Tree node to the process flow.
          6、Connect the predecessor Variable Selection node to the Tree node.
          7、Open the Tree node.
         8、 select Tools   Import Tree. This menu item is not available if you did not use the Chi-square selection criterion to create the tree in the predecessor Variable Selection node.
         9、 Close and run the Tree node.
         10、 Select the Yes button in the Message window to view the results in the browser.