Downgrade Flutter 3.0 to 2.10 - May Not Be Needed

Likely, your app has an error about Warning: Operand of null-aware operation '!' has type 'SchedulerBinding' which excludes null.

Probably, this error is in a package you are using and it is too much work to update the package you imported, so you're living with the error. On Flame 1.1.1, I am ignoring this error. It's possible that you can just ignore this error too. However, if you want to go back down to Flutter 2.10.5 (latest stable) or Flutter 2.10.0 (version used in Flame examples as of May 17, 2020), then you go into your Flutter directory and run git checkout 2.10.0 or the version of Flutter you want to run. Then, run flutter doctor.

If you do not know where your flutter is installed, you can also run flutter doctor -v

[toyibmustapha]

I'm so greateful sir, this saved me

[TheGaboZizou]

thank you very much friend, blessings

[olevsindia]

Because no versions of flutter_styled_toast match >2.1.3 <3.0.0 and flutter_styled_toast 2.1.3 depends on flutter_localizations from sdk, flutter_styled_toast ^2.1.3 requires flutter_localizations from sdk.
And because every version of flutter_localizations from sdk depends on intl 0.18.0 and every version of flutter_paystack from git depends on intl ^0.17.0, flutter_styled_toast ^2.1.3 is incompatible with flutter_paystack from git.
So, because espeech depends on both flutter_paystack from git and flutter_styled_toast ^2.1.3, version solving failed.
Process finished with exit code 1




Sir I am facing this problem reading please support sir