Resolving dependencies...
Because every version of flutter_test from sdk depends on collection 1.17.1 and esc_pos_dart >=1.0.2 depends on collection ^1.17.2, flutter_test from sdk is incompatible with esc_pos_dart >=1.0.2.
So, because myApp depends on both esc_pos_dart ^1.0.4 and flutter_test from sdk, version solving failed.
exit code 1
Resolving dependencies... Because every version of flutter_test from sdk depends on collection 1.17.1 and esc_pos_dart >=1.0.2 depends on collection ^1.17.2, flutter_test from sdk is incompatible with esc_pos_dart >=1.0.2. So, because myApp depends on both esc_pos_dart ^1.0.4 and flutter_test from sdk, version solving failed. exit code 1