The problem of scanning QR code with React native

when using React native to do a project, I encountered the problem of scanning the QR code.
use ac-qrcode
as follows:

the dependencies of the project are as follows: 

"dependencies": {
    "ac-qrcode": "^1.0.0",
    "react": "16.3.1",
    "react-native": "0.55.4",
    "react-native-simple-toast": "0.0.8",
    "react-navigation": "^2.5.5"
  },
  "devDependencies": {
    "babel-jest": "23.2.0",
    "babel-preset-react-native": "4.0.0",
    "jest": "23.2.0",
    "react-test-renderer": "16.3.1"
  },
  "jest": {
    "preset": "react-native"
  }

if there is a great god who knows something about this problem, please ask for advice.
beg on your knees. Thank you.

React-native
Mar.22,2021

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e5294d-451c1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e5294d-451c1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?