unknown_platform
The platform '{0}' is not a recognized platform.
Description
#The analyzer produces this diagnostic when an unknown platform name is used as a key in the platforms
map. To learn more about specifying your package's supported platforms, check out the documentation on platform declarations.
Example
#The following pubspec.yaml
produces this diagnostic because the platform browser
is unknown.
name: example
platforms:
browser:
Common fixes
#If you can rely on automatic platform detection, then omit the top-level platforms
key.
name: example
If you need to manually specify the list of supported platforms, then write the platforms
field as a map with known platform names as keys.
name: example
platforms:
# These are the known platforms
android:
ios:
linux:
macos:
web:
windows:
Unless stated otherwise, the documentation on this site reflects Dart 3.7.3. Page last updated on 2025-05-08. View source or report an issue.