报错内容如下：
selenium.common.exceptions.WebDriverException: Message: An unknown server-side error occurred while processing the command. Original error: Cannot verify the signature of 'C:\Users\Administrator\AppData\Local\Programs\Appium\resources\app\node_modules\appium\node_modules\appium-uiautomator2-server\apks\appium-uiautomator2-server-v4.21.1.apk'. Original error: The JAVA_HOME location 'C:\Program Files\Java\jdk-16.0.1' must exist

是什么问题啊？