Gulp...
Your requirements could not be resolved to an installable set of packages.
Problem 1
- flagrow/console 0.4.3 requires symfony/process ~3.3 -> satisfiable by symfony/process[3.3.x-dev, 3.4.x-dev, v3.3.0, v3.3.0-BETA1, v3.3.0-RC1, v3.3.1, v3.3.10, v3.3.11, v3.3.12, v3.3.13, v3.3.14, v3.3.15, v3.3.16, v3.3.17, v3.3.18, v3.3.2, v3.3.3, v3.3.4, v3.3.5, v3.3.6, v3.3.7, v3.3.8, v3.3.9, v3.4.0, v3.4.0-BETA1, v3.4.0-BETA2, v3.4.0-BETA3, v3.4.0-BETA4, v3.4.0-RC1, v3.4.0-RC2, v3.4.1, v3.4.10, v3.4.11, v3.4.12, v3.4.13, v3.4.14, v3.4.15, v3.4.16, v3.4.17, v3.4.18, v3.4.19, v3.4.2, v3.4.20, v3.4.21, v3.4.22, v3.4.23, v3.4.24, v3.4.25, v3.4.26, v3.4.27, v3.4.28, v3.4.29, v3.4.3, v3.4.4, v3.4.5, v3.4.6, v3.4.7, v3.4.8, v3.4.9] but these conflict with your requirements or minimum-stability.
- Conclusion: remove flagrow/bazaar 0.3.10
- Conclusion: remove illuminate/contracts v5.5.44
- Conclusion: don't install illuminate/contracts v5.7.28
- Conclusion: don't install illuminate/contracts v5.5.41|install illuminate/contracts v5.7.28
- Conclusion: don't install illuminate/contracts v5.5.43|install illuminate/contracts v5.7.28
- Conclusion: don't install illuminate/contracts v5.5.44|install illuminate/contracts v5.7.28
- Conclusion: don't install illuminate/contracts v5.5.40
- Conclusion: don't install illuminate/contracts v5.5.39
- Conclusion: don't install illuminate/contracts v5.5.37
- Conclusion: don't install illuminate/contracts v5.5.36
- Conclusion: don't install illuminate/contracts v5.5.35
- Conclusion: don't install illuminate/contracts v5.5.34
- Conclusion: don't install illuminate/contracts v5.5.33
- Conclusion: don't install illuminate/contracts v5.5.28
- Conclusion: don't install illuminate/contracts v5.5.17
- Conclusion: don't install illuminate/contracts v5.5.16
- Conclusion: don't install illuminate/contracts v5.5.2
- Installation request for flagrow/bazaar ^0.3.10 -> satisfiable by flagrow/bazaar[0.3.10].
- Installation request for flarum/core ^0.1.0-beta.9 -> satisfiable by flarum/core[v0.1.0-beta.9].
- flagrow/bazaar 0.3.10 requires flagrow/console ^0.4 -> satisfiable by flagrow/console[0.4.2, 0.4.0, 0.4.1, 0.4.3].
- flagrow/console 0.4.0 requires illuminate/console 5.5.* -> satisfiable by illuminate/console[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- flagrow/console 0.4.2 requires illuminate/console 5.5.* -> satisfiable by illuminate/console[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- flagrow/console 0.4.2 requires illuminate/console 5.5.* -> satisfiable by illuminate/console[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- flagrow/console 0.4.1 requires illuminate/console 5.5.* -> satisfiable by illuminate/console[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.44 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.44 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.43 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.41 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.40 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.39 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.37 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.36 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.35 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.34 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.33 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.28 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.2 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.17 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.16 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- illuminate/console v5.5.0 requires illuminate/contracts 5.5.* -> satisfiable by illuminate/contracts[v5.5.44, v5.5.0, v5.5.16, v5.5.17, v5.5.2, v5.5.28, v5.5.33, v5.5.34, v5.5.35, v5.5.36, v5.5.37, v5.5.39, v5.5.40, v5.5.41, v5.5.43].
- Conclusion: don't install illuminate/contracts v5.5.0
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.
