vivado配置引脚时出现are already placed and will be

locked during the implementation process. What does this mean and how can I resolve this issue?

This message in Vivado means that some of the pins you are trying to assign have already been assigned to a specific location and the tool will not allow any changes to be made to these pins during the implementation process.

To resolve this issue, you could try assigning different pins or rearranging the pin assignments to avoid conflicting pins. Alternatively, you could also try disabling some of the pin locking options in the Vivado Design Constraints (XDC) file.