使用composer加载git repo - 自动加载问题

Finaly, I have found out what was the problem. composer.json file in the project I was trying to load - UPS library -was invalid. I was able to download files when I ran:

composer.phar install

but it looks like composer.json file was ignored. I found it out when I ran

composer.phar update

and got

No valid composer.json was found

With option -v I got error that "name" is undefined index. So, I simply added "name" field to the composer.json. Final version is:

{
    "name":"KoulSlou/UPS",
    "autoload": {
        "files": [
            "libraries/Ups/Ups.php",
            "libraries/Ups/Ups_Base.php",
            "libraries/Ups/Ups_Base_Response.php",
            "libraries/Ups/Ups_Live_Rates.php"
         ]
    }
}

I'd suggest not using the "files" autoloader, because that isn't very automatic - the files mentioned here are ALWAYS included. Replacing it with "classmap" would be better. And then you'd not be required to mention ALL files, but you can simply state the directory you want to have scanned for classes.

Now what I don't see anywhere: Did you initialize Composer's autoloader anywhere? This usually is something like

require "vendor/autoload.php";