Sou iniciante em programação de bibliotecas kivy, mas fiz uma aplicação muito simples, como no tutorial do Kivy. Na área de trabalho, ele funciona bem. Mas do que eu queria fazer o arquivo .apk (não tinha usado o Linux). Eu tentei várias etapas para criar um arquivo .apk, mas finalmente quando instalei e abri este programa. Ocorreu um erro. Eu tentei muitas especificações e new_android, mas nada funcionou. Finalmente atualizei meu buildozer para a última versão. Mas agora, após a depuração do buildozer android, ele escreve este erro:

IOError: [Erro 2] Esse arquivo ou diretório não existe: u '/ home / kivy / reyyy / .buildozer / android / platform / build / dists / RetroApp / build / outputs / apk / RetroApp-debug.apk'.

************* buildozer.spec ***************

[app]

title = Retro App

package.name = retroapp


package.domain = org.test

source.dir = .

source.include_exts = py,png,jpg,kv,atlas

version = 1.0

requirements = kivy

orientation = landscape

osx.python_version = 3

osx.kivy_version = 1.9.1

fullscreen = 1

android.arch = armeabi-v7a

[buildozer]

log_level = 2

warn_on_root = 1

****** python3: main.py *******

from kivy.app import App
from kivy.uix.widget import Widget
from kivy.properties import NumericProperty,ObjectProperty,ReferenceListProperty,StringProperty
from kivy.vector import Vector
from kivy.clock import Clock
from kivy.uix.button import Button
from random import randint,choice


class RetryButton(Button):
    pass

class PongBall(Widget):
    velocity_y = NumericProperty(0)
    velocity_x = NumericProperty(0)

    velocity = ReferenceListProperty(velocity_x,velocity_y)
    def move(self):
        self.pos = Vector(*self.velocity)+self.pos

class PongPaddle(Widget):
    score = NumericProperty(0)

    def bounce_ball(self,ball):
        if self.collide_widget(ball):
            vx,vy = ball.velocity
            offset = (ball.center_y - self.center_y) / (self.height /10.0)
            bounced = Vector(-1 * vx, vy)
            vel = bounced * 1.1
            ball.velocity = vel.x, vel.y + offset

class PongGame(Widget):
    ball = ObjectProperty(None)
    player1 = ObjectProperty(None)
    player2 = ObjectProperty(None)
    win = NumericProperty(0)
    middle_rectangle_opacity = NumericProperty(1)
    winner = StringProperty('')
    def __init__(self,**q):
    super().__init__(**q)
        self.btn = RetryButton(width = self.width)
        self.btn.count = 0
        self.max_score = 10

    def serve_ball(self,vel = (10,0)):
        self.ball.center =  self.center
        self.ball.velocity = Vector(*vel).rotate(choice([randint(0,30),randint(330,360)]))

    def update(self,dt):
        if self.win == 0:

            self.ball.move()
            self.player1.bounce_ball(self.ball)
            self.player2.bounce_ball(self.ball)
            if self.player1.score >= self.max_score or self.player2.score >=self.max_score:
                if self.player1.score >= self.max_score:
                    self.winner = '1'
                else:
                    self.winner = '2'
                self.win = 1
                self.middle_rectangle_opacity = 0

            if (self.ball.y < self.y) or (self.ball.top > self.height):
                self.ball.velocity_y *= -1

            if self.ball.x<self.x:
                self.player2.score += 1
                self.serve_ball((10,0))
            if self.ball.x > self.width - self.ball.width:
                self.player1.score += 1
                self.serve_ball((-10,0))
        else:
            if self.btn.count == 0:
                self.btn.bind(on_press=self.retry)
                self.add_widget(self.btn)
                self.btn.count += 1

    def on_touch_move(self, touch):
        if touch.x < self.width/3.0:
            self.player1.center_y = touch.y
        if touch.x > self.width - self.width/3.0:
            self.player2.center_y = touch.y

    def retry(self,*q):

        self.player1.score = 0
        self.player2.score = 0
        self.win = 0
        self.middle_rectangle_opacity = 1
      ,  self.serve_ball()
        self.remove_widget(self.btn)
        self.btn.count = 0

class PongApp(App):
    def build(self):
        game = PongGame()
        game.serve_ball()
        Clock.schedule_interval(game.update, 1/30.0)
        return game

if __name__ == '__main__':
    PongApp().run()`

******** KV pong.kv *********

#:kivy 1.0.9
<RetryButton>:
    text: 'Retry'
    font_size: 17
    size: self.width, '100dp'
<PongBall>:
    size:50,50
    canvas.before:
        Ellipse:
            pos: self.pos
            size: self.size

<PongPaddle>:
    size: '25dp','200dp'
    canvas:
        Rectangle:
            pos:self.pos
            size: self.size


<PongGame>:
    ball: pong_ball
    player1: player_left
    player2: player_right
    canvas:
        Color:
            rgba: 1,1,1,root.middle_rectangle_opacity
        Rectangle:
            pos:self.center_x - 5,0
            size: 10, self.height
    Label:
        font_size:35
        center_x: root.center_x
        center_y: root.height/4*3
        text: "Player {} wins!!".format(root.winner)
        color: 1,1,1,root.win
    Label:
        font_size: 70
        center_x: root.width/4
        top: root.top - 50
        text: str(root.player1.score)
    Label:
        font_size: 70
        center_x: root.width/4*3
        top: root.top - 50
        text: str(root.player2.score)
    PongBall:
        id: pong_ball
        center: self.parent.center
    PongPaddle:
        id: player_left
        x: root.x
        center_y: root.center_y
    PongPaddle:
        id: player_right
        x: root.width - self.width
        center_y: root.center_y

Por favor me ajude! Vadim.