b56f9e5796
Currently when a non-existing FILE is passed to 'tvmc compile' it throws a traceback because a FileNotFoundError exception is not handled. Since there is no need for such abrupt exit, and the trace can also confuse users, this commit fixes it by checking if FILE indeed exists, informing the user about the non-existing FILE before exiting. Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org>