Your requirements could not be resolved to an installable set of packages.
Problem 1
- simplesamlphp/saml2[v5.0.0-alpha.10, ..., v5.0.0-alpha.11] require ext-soap * -> it is missing from your system. Install or enable PHP's soap extension.
- Root composer.json requires simplesamlphp/saml2 ^5.0.0-alpha.10 -> satisfiable by simplesamlphp/saml2[v5.0.0-alpha.10, v5.0.0-alpha.11].
To enable extensions, verify that they are enabled in your .ini files:
- C:\tools\php\php.ini
You can also run `php --ini` in a terminal to see which files are used by PHP in CLI mode.
Alternatively, you can run Composer with `--ignore-platform-req=ext-soap` to temporarily ignore these required extensions.