Often you need to unhook the line from the master cylinder and use your fingertip on the hole and pump the lever slowly to get the air bled out of the M/C.
Once you get the air out of the M/C rehook the line. Now at the next joint in the line, at the block on the lower tree use one of the banjo bolts to bleed the line that far, by pulling the lever slowly and while holding the lever pulled, crack the bolt.
Once you get bled there move down to the caliper and bleed from the bleeder.
Leo