Because every version of flutter_test from sdk depends on path 1.8.0 and video_trimmer >=1.1.0 depends on path ^1.8.1, flutter_test from sdk is incompatible with video_trimmer >=1.1.0. So, because 'my app name 'depends on both video_trimmer ^1.1.1 and flutter_test from sdk, version solving failed. pub get failed (1; So, because 'my app name depends on both video_trimmer ^1.1.1 and flutter_test from sdk, version solving failed.) #160