Test extension to packagist submitted successfully, but composer installation failed

Today I want to submit a little bit of stuff to packagist according to the tutorials; but at the last step of the tutorials, I made a mistake.

I didn"t report an error when I submitted it to packagist; but if I execute composer require daji/hello in another project, what if I report an error?
I don"t know why

Feb.28,2021

you download the stable version by default, but you submit the dev version, so you can't find it, so try downloading the dev version instead.

minimum-stability

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-64f5-1b33b88-2abff.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b33b88-2abff.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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