Fixed doctrine/persistence dependency

[smilesrg]

doctrine/persistence dependency has been updated to 3.0@dev version for 3.0.x branch.

That problem leads to

 Your lock file does not contain a compatible set of packages. Please run composer update.
 
   Problem 1
     - doctrine/common is locked to version 3.0.2 and an update of this package was not requested.
     - doctrine/common 3.0.2 requires doctrine/persistence ^2.0 -> found doctrine/persistence[3.0.x-dev] but it does not match the constraint.

while installing dependency for doctrine/persistence

[greg0ire]

doctrine/persistence dependency has been updated to 3.0@dev version for 3.0.x branch.
That problem leads to

I'm sorry, what problem? And why would we use a dev version on a stable branch? Also, 3.0.x is no longer maintained.

[smilesrg]

I'm sorry, what problem?

I described it in the description (I've just updated it). I tried to composer install on doctrine/persistence 3.0.x but got an errors with dependencies.

And why would we use a dev version on a stable branch?

If remove @dev prefix, you can get minimum stability error while doing composer install on doctrine/common

Also, 3.0.x is no longer maintained.

Could you please tell which branch is proper to use?

[smilesrg]

Also, 3.0.x is no longer maintained.

There's no information about this
https://www.doctrine-project.org/projects/persistence.html

[smilesrg]

Well, dependencies are totally confused. I am working on doctrine/orm#8657 issue doctrine/orm#8460 (Deprecate EntityManager::clear with argument of one entity class and EntityRepository::clear), making changes in ORM 3.x but I also need to make changes in doctrine/persistence doctrine/persistence#174, I guess I should make changes in 3.x branch? But then, if I am using 3.x branch, error appears during composer install. Also, it is so strange, when stable doctrine/common 3.x stable branches are using persistence 2.x stable branch. I really confused with the dependencies. Could you please help me to resolve that?

[greg0ire]

You can use the following to trick doctrine/persistence into thinking it is in version 2.0 instead of 3:

COMPOSER_ROOT_VERSION=2.0 composer install --no-interaction --no-progress

More details here on why I added this dependency: doctrine/persistence#122 (comment)

Could you please tell which branch is proper to use?

If it's a fix, 3.1.x. .doctrine-project.json is often outdated, so I'll give you the rule: if the last tag is X.Y.Z, then fixes should got to X.Y, and features to X.Y+1 .