Support for autoload.exclude-from-files has been removed. This non-standard usage of the autoloads property should never have been supported to begin with.
Instead of using autoload:
{
"autoload": {
"exclude-from-files": [
"illuminate/support/helpers.php"
]
}
}You now have to use extra:
{
"extra": {
"exclude-from-files": [
"illuminate/support/helpers.php"
]
}
}