latest phar does not work complaining about unexisting getVariadic method

[Gamesh]

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Bug Report

Migration 20200125193137 failed during Pre-Checks. Error Call to undefined method Zend\Code\Generator\ParameterGenerator::getVariadic()
PHP Fatal error:  Uncaught Error: Call to undefined method Zend\Code\Generator\ParameterGenerator::getVariadic() in phar:///var/www/html/doctrine-migrations.phar/vendor/ocramius/proxy-manager/src/ProxyManager/ProxyGenerator/ValueHolder/MethodGenerator/Constructor.php:91
Stack trace:
#0 [internal function]: ProxyManager\ProxyGenerator\ValueHolder\MethodGenerator\Constructor::ProxyManager\ProxyGenerator\ValueHolder\MethodGenerator\{closure}(Object(Zend\Code\Generator\ParameterGenerator))
#1 phar:///var/www/html/doctrine-migrations.phar/vendor/ocramius/proxy-manager/src/ProxyManager/ProxyGenerator/ValueHolder/MethodGenerator/Constructor.php(93): array_map(Object(Closure), Array)
#2 phar:///var/www/html/doctrine-migrations.phar/vendor/ocramius/proxy-manager/src/ProxyManager/ProxyGenerator/ValueHolder/MethodGenerator/Constructor.php(67): ProxyManager\ProxyGenerator\ValueHolder\MethodGenerator\Constructor::generateOriginalConstructorCall(Object(ReflectionClass), Object(ProxyManager\ProxyGenerator\LazyLoadingValueHolder\PropertyGener in phar:///var/www/html/doctrine-migrations.phar/vendor/ocramius/proxy-manager/src/ProxyManager/ProxyGenerator/ValueHolder/MethodGenerator/Constructor.php on line 91

Fatal error: Uncaught Error: Call to undefined method Zend\Code\Generator\ParameterGenerator::getVariadic() in phar:///var/www/html/doctrine-migrations.phar/vendor/ocramius/proxy-manager/src/ProxyManager/ProxyGenerator/ValueHolder/MethodGenerator/Constructor.php:91
Stack trace:
#0 [internal function]: ProxyManager\ProxyGenerator\ValueHolder\MethodGenerator\Constructor::ProxyManager\ProxyGenerator\ValueHolder\MethodGenerator\{closure}(Object(Zend\Code\Generator\ParameterGenerator))
#1 phar:///var/www/html/doctrine-migrations.phar/vendor/ocramius/proxy-manager/src/ProxyManager/ProxyGenerator/ValueHolder/MethodGenerator/Constructor.php(93): array_map(Object(Closure), Array)
#2 phar:///var/www/html/doctrine-migrations.phar/vendor/ocramius/proxy-manager/src/ProxyManager/ProxyGenerator/ValueHolder/MethodGenerator/Constructor.php(67): ProxyManager\ProxyGenerator\ValueHolder\MethodGenerator\Constructor::generateOriginalConstructorCall(Object(ReflectionClass), Object(ProxyManager\ProxyGenerator\LazyLoadingValueHolder\PropertyGener in phar:///var/www/html/doctrine-migrations.phar/vendor/ocramius/proxy-manager/src/ProxyManager/ProxyGenerator/ValueHolder/MethodGenerator/Constructor.php on line 91

Q	A
BC Break	no
Version	2.2.1
PHP	v7.2

Summary

running migration:migrate fails with error: Error Call to undefined method Zend\Code\Generator\ParameterGenerator::getVariadic()

[skybluesofa]

I get this same error message when using a cli-config.php file. If I just use the migrations.php and migrations-db.php as directed in the instructions, the migrations work fine.

[SenseException]

@skybluesofa Do you see an issue with the documentation? Is it unclear or are there undocumented details to make it more understandable?