Vue runs the project Your application is running here: http://undefined:8081

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undefined

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the default host is location, and even if it is changed to local ip, it is still http://undefined:8081

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Aug.16,2021

Hello, landlord! Make sure that there is a host attribute in devServer in your webpack.dev.config.js . If not, add it, and then point to your config.js . You can refer to this configuration, Portal

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if there is a solution, please click to adopt it, thank you ~

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