Console task terminated, bei Installation über den Contao-Manager

[lindesbs]

Wortlaut der Fehlermeldung

Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

Problem 1
- The requested package roave/security-advisories (locked at dev-master) is satisfiable by roave/security-advisories[dev-master] but these conflict with your requirements or minimum-stability.

<warning>Running update with --no-dev does not mean require-dev is ignored, it just means the packages will not be installed. If dev requirements are blocking the update you have to resolve those problems.</warning>
Finished Composer Cloud resolving. 

Versionen/Zusatzinformationen

• Contao:
• PHP:
• Browser (bei Javascript Fehlern):

Ort

• [ ] Backend
• [ ] Frontend
• [ ] Contao Manager
• [x] Composer

Falls vorhanden: Link zum Forumsthread https://community.contao.org/de/showthread.php?72448-Console-task-terminated-bei-Installation-%C3%BCber-den-Contao-Manager&highlight=exception