TYPO3 Core

This is a minimal composer.json to reproduce my issue:

{
  "repositories": [
    {
      "type": "composer",
      "url": "https://composer.typo3.org/" 
    }
  ],
  "name": "stefanr/test",
  "require": {
    "typo3/cms": "^7.6",
    "typo3-ter/wizard-crpagetree": "1.1.0" 
  },
  "extra": {
    "typo3/cms": {
      "cms-package-dir": "{$vendor-dir}/typo3/cms",
      "web-dir": "web" 
    }
  }
}

When I run
composer install
I get the following error:

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - typo3-ter/func 9.0.1 requires typo3/cms-core >= 9.0.0, <= 9.0.99 -> no matching package found.
    - typo3-ter/func 9.0.0 requires typo3/cms-core >= 9.0.0, <= 9.0.99 -> no matching package found.
    - typo3-ter/wizard-crpagetree 1.1.0 requires typo3-ter/func * -> satisfiable by typo3-ter/func[9.0.0, 9.0.1].
    - Installation request for typo3-ter/wizard-crpagetree 1.1.0 -> satisfiable by typo3-ter/wizard-crpagetree[1.1.0].

Potential causes:
 - A typo in the package name
 - The package is not available in a stable-enough version according to your minimum-stability setting
   see <https://getcomposer.org/doc/04-schema.md#minimum-stability> for more details.