fatal: detected dubious ownership & Because complex_layout depends on flutter_gallery_assets 0.2.1 which re quires Flutter SDK version >=0.1.0 <2.0.0, version solving failed.

[Masterxilo]

#0 120.6 fatal: detected dubious ownership in repository at '/opt/flutter'
#0 120.6 To add an exception for this directory, call:
#0 120.6
#0 120.6        git config --global --add safe.directory /opt/flutter
#0 122.0 Running "flutter pub get" in devicelab...                           1.3
s
#0 123.3 Running "flutter pub get" in automated_tests...                     0.6
s
#0 123.9 Running "flutter pub get" in complex_layout...
#0 124.8 The current Flutter SDK version is 0.0.0-unknown.
#0 124.8
#0 124.8
#0 124.8
#0 124.8 Because complex_layout depends on flutter_gallery_assets 0.2.1 which re
quires Flutter SDK version >=0.1.0 <2.0.0, version solving failed.
#0 124.9 pub get failed (1; Because complex_layout depends on flutter_gallery_as
sets 0.2.1 which requires Flutter SDK version >=0.1.0 <2.0.0, version solving fa
iled.)