The weex create project definition name ends abruptly.

I want to create a weex app, but it doesn"t work when "weex create my".
I never see a problem like this.
Please tell me how to deal this problem.Thanks.
encountered this problem for the first time. After defining the name, it ended directly. If you know, please tell me the reason and method. Thank you.

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Mar.20,2021
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