'I am having the following errors when building my FLUTTER Firebase phone authentication application:

Error: Cannot run with sound null safety, because the following dependencies don't support null safety:

package:firebase_core_web
package:firebase_auth
package:firebase
package:firebase_core_platform_interface
package:firebase_core
package:plugin_platform_interface
package:http_parser
package:quiver

flutter-dependencies

Solution 1:^[1]

Check if all dependencies can be upgraded dart pub outdated --mode=null-safety
Update to all the latest dependencies dart pub upgrade --null-safety Ps:you can find in https://codewithandrea.com/articles/migrating-flutter-firebase-app-null-safety/

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	???