关于appium运行脚本错误，什么回事呢，求教

selenium.common.exceptions.WebDriverException: Message: An unknown server-side error occurred while processing the command. Original error: Error executing adbExec. Original error: 'Command 'E:\\Android\\android-sdk\\platform-tools\\adb.exe -P 5037 -s emulator-5554 shell pm install -r /data/local/tmp/appium_cache/0cc1725a60a05dbb5d0d09256f2fc6ece7e3b10f.apk' timed out after 20000ms'. Try to increase the 20000ms adb execution timeout represented by 'uiautomator2ServerInstallTimeout' capability

只是运行一个简单的脚本罢了，出现这堆错误提示，应该怎么办呢