Fehlermeldung beim Upgrade von 2.3.5 auf 2.4

[ERAG]

Hallo zusammen

Wenn ich meine Testversion von Magento aktualisieren möchte, erschient folgender Fehler, doch wie kann ich diesen php-cs-fixer aktualisieren? Auf dem Sever wird PHP7.3 ausgeführt.

Danke für die Tipps
Problem 1
- friendsofphp/php-cs-fixer v2.10.5 requires php ^5.6 || >=7.0 <7.3 -> your PHP version (7.3.19) does not satisfy that requirement.
- friendsofphp/php-cs-fixer v2.10.4 requires php ^5.6 || >=7.0 <7.3 -> your PHP version (7.3.19) does not satisfy that requirement.
- friendsofphp/php-cs-fixer v2.10.3 requires php ^5.6 || >=7.0 <7.3 -> your PHP version (7.3.19) does not satisfy that requirement.
- friendsofphp/php-cs-fixer v2.10.2 requires php ^5.6 || >=7.0 <7.3 -> your PHP version (7.3.19) does not satisfy that requirement.
- friendsofphp/php-cs-fixer v2.10.1 requires php ^5.6 || >=7.0 <7.3 -> your PHP version (7.3.19) does not satisfy that requirement.
- Installation request for friendsofphp/php-cs-fixer ~2.10.1 -> satisfiable by friendsofphp/php-cs-fixer[v2.10.1, v2.10.2, v2.10.3, v2.10.4, v2.10.5]. 

[dragon]

Hello @ERAG,

Please check this link. 

https://github.com/magento/magento2/issues/29350

I hope this will help you.

If it helps you, please accept it as solution and give kudos.

[ERAG]

Hello Dragon 

Thanks for the proposed solution. After edit composer.json another error occurs. how can i update the framework to 103. I read on another page that this is due to an old version of composer. I have installed the current version and the error still occurs.

- Can only install one of: magento/framework[102.0.5-p2, 103.0.0].
- Can only install one of: magento/framework[102.0.4-p2, 103.0.0].
- Can only install one of: magento/framework[102.0.5, 103.0.0].
- Can only install one of: magento/framework[102.0.3-p1, 103.0.0].
- Can only install one of: magento/framework[102.0.4, 103.0.0].
- Can only install one of: magento/framework[102.0.3, 103.0.0].
- Can only install one of: magento/framework[103.0.0, 102.0.5].

Magento - my never ending nightmare