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  Problem 1
    - ap/bc3-slack-integration dev-master requires league/oauth2-client 2.4.1 -> satisfiable by league/oauth2-client[2.4.1].
    - ap/bc3-slack-integration dev-master requires league/oauth2-client 2.4.1 -> satisfiable by league/oauth2-client[2.4.1].
    - league/oauth2-client 2.4.1 requires guzzlehttp/guzzle ^6.0 -> satisfiable by guzzlehttp/guzzle[6.3.3, 6.0.0, 6.0.1, 6.0.2, 6.1.0, 6.1.1, 6.2.0, 6.2.1, 6.2.2, 6.2.3, 6.3.0, 6.3.1, 6.3.2].
    - league/oauth2-client 2.4.1 requires guzzlehttp/guzzle ^6.0 -> satisfiable by guzzlehttp/guzzle[6.3.3, 6.0.0, 6.0.1, 6.0.2, 6.1.0, 6.1.1, 6.2.0, 6.2.1, 6.2.2, 6.2.3, 6.3.0, 6.3.1, 6.3.2].
    - Can only install one of: guzzlehttp/guzzle[6.0.0, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.0.1, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.0.2, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.1.0, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.1.1, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.2.0, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.2.1, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.2.2, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.2.3, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.3.0, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.3.1, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.3.2, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[6.3.3, 5.3.3].
    - Can only install one of: guzzlehttp/guzzle[5.3.3, 6.3.3].
    - google/google-site-kit 1.0.0-beta.1.0.1 requires guzzlehttp/guzzle ~5.3.3 -> satisfiable by guzzlehttp/guzzle[5.3.3].
    - Installation request for google/google-site-kit 1.0.0-beta.1.0.1 -> satisfiable by google/google-site-kit[1.0.0-beta.1.0.1].
    - Installation request for ap/bc3-slack-integration dev-master -> satisfiable by ap/bc3-slack-integration[dev-master].