When I try to install this package, in Apache+PHP-FPM 7.4, I get the following error (BTW, I am using AWS SDK PHP inside my project):
Your requirements could not be resolved to an installable set of packages.
Problem 1
- Installation request for mpdf/qrcode ^1.1 -> satisfiable by mpdf/qrcode[v1.1.0].
- Conclusion: remove paragonie/random_compat v9.99.100
- Conclusion: don't install paragonie/random_compat v9.99.100
- mpdf/qrcode v1.1.0 requires paragonie/random_compat ^1.4|^2.0|9.99.99 -> satisfiable by paragonie/random_compat[v1.4.0, v1.4.1, v1.4.2, v1.4.3, v2.0.0, v2.0.1, v2.0.10, v2.0.11, v2.0.12, v2.0.13, v2.0.14, v2.0.15, v2.0.16, v2.0.17, v2.0.18, v2.0.19, v2.0.2, v2.0.3, v2.0.4, v2.0.5, v2.0.6, v2.0.7, v2.0.8, v2.0.9, v9.99.99].
- Can only install one of: paragonie/random_compat[v1.4.0, v9.99.100].
- Can only install one of: paragonie/random_compat[v1.4.1, v9.99.100].
- Can only install one of: paragonie/random_compat[v1.4.2, v9.99.100].
- Can only install one of: paragonie/random_compat[v1.4.3, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.0, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.1, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.10, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.11, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.12, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.13, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.14, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.15, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.16, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.17, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.18, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.19, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.2, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.3, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.4, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.5, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.6, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.7, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.8, v9.99.100].
- Can only install one of: paragonie/random_compat[v2.0.9, v9.99.100].
- Can only install one of: paragonie/random_compat[v9.99.99, v9.99.100].
- Installation request for paragonie/random_compat (locked at v9.99.100) -> satisfiable by paragonie/random_compat[v9.99.100].
Installation failed, reverting ./composer.json to its original content.