The specified version of nvm use is invalid

my procedure for using nvm-window, in window environment:
1, install nvm-window
2 first, and install the latest version on node.js official website

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3nvm install 6.1.0 6.1.0

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4nvm use node -v

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have you guys ever encountered this kind of situation? ask for advice.

Sep.29,2021

add:
1. Just now I tried to uninstall node.js again, then installed it with nvm install, and installed two

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2.nvm usenode

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3.nvm ls

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----------------------------------------------------
nvm-window1.1.6

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follow the process of https://blog.csdn.net/qq_3642. here, and then all right. The strange thing is that it was installed according to this process yesterday, but it is not right, so it is not clear whether it is the problem of the version, or whether I have not uninstalled it before or the process is wrong. All in all, Versions can now be switched normally. If you encounter the same problem, it is recommended to unload and reinstall it all, simply and directly ~

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3e4f4-2bb7e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3e4f4-2bb7e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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