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

Packagist.org composer php
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

Previous: The innerHTML problem of svg tag objects created with js

Next: MySQL data insertion

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
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-64f5-1e45f0b-44b68.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e45f0b-44b68.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?