Project read error when downloading Maven project

The reason is not very clear, but the online search method can solve the error;

Operation steps:
1, open the computer’s CMD operation interface, and find the folder to open the wrong project in the CMD interface, for example, my project folder is in F/user/workspace/cxfserver
Enter CD: F/user/workspace/cxfserver in the CMD interface     You can go to the folder where the project is located
2. Enter the MVN – x clean install command and click enter. After that, the interface will refresh continuously. Finally, build success will appear to indicate that the operation is completed
3, then right-click the target project Maven – & gt; Updata project, check your project for confirmation, then update the project and solve the project read error

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