appium自动化运行报错 AttributeError: 'NoneType' object has no attribute 'to_capabiliti

from appium import webdriver

# 配置Appium参数
capabilities = {
    'platformName': 'Android',
    'platformVersion': '7.1.2',
    'deviceName': '127.0.0.1:62001',
    'appPackage': 'com.android.browser',
    'appActivity': 'BrowserActivity',
    'automationName': 'UiAutomator2'
}

# 启动Appium服务
driver = webdriver.Remote('http://localhost:4723/wd/hub', capabilities)

# 等待应用加载
driver.implicitly_wait(10)


# 结束测试
driver.quit()