cannot run using README instructions

[fossfreedom]

What happened?

running flutter run throws the following error:

dad@dad-TUXEDO-Pulse-15-Gen1:~/development/installer/newinstaller/ubuntu-desktop-installer/packages/ubuntu_desktop_installer$ flutter run
Resolving dependencies... (4.2s)
Note: test_api is pinned to version 0.6.0 by flutter_test from the flutter SDK.
See https://dart.dev/go/sdk-version-pinning for details.


Because every version of flutter_test from sdk depends on test_api 0.6.0 and every version of ubuntu_test depends on test_api ^0.5.1, flutter_test
  from sdk is incompatible with ubuntu_test.
So, because ubuntu_desktop_installer depends on both flutter_test from sdk and ubuntu_test ^0.1.0-beta.1, version solving failed.

What was expected?

to be above to dry run the installer

Steps to reproduce

follow the README instructions

Additional context

No response

[langtaibai]

I also meet the same issue.
Ubuntu_desktop_installer depends on ubuntu_test ^0.1.0 which doesn't match any version, version solving failed