我已经成功生成了create-react-native-app，但是，当我与relay一起安装graphql时，却出现了错误：
> react-native-scripts start
10:50:27 AM: Starting packager...
***ERROR STARTING PACKAGER***
Warning: Problem validating app.json: Unable to perform cache refresh for /home/vagrant/.cache/expo/schema-27.0.0.json: Error: certificate is not yet valid.
Error: Invalid sdkVersion. Valid options are 10.0.0, 11.0.0, 12.0.0, 13.0.0, 14.0.0, 15.0.0, 16.0.0, 17.0.0, 18.0.0, 19.0.0, 20.0.0, 21.0.0, 22.0.0, 23.0.0, 24.0.0, 25.0.0, 7.0.0, 8.0.0, 9.0.0
这是我的package.json：
{
"name": "blah",
"version": "0.1.0",
"private": true,
"devDependencies": {
"babel-plugin-relay": "^1.6.2",
"graphql": "^14.0.2",
"jest-expo": "~27.0.0",
"react-native-scripts": "1.14.0",
"react-test-renderer": "16.3.1",
"relay-compiler": "^1.6.2"
},
"main": "./node_modules/react-native-scripts/build/bin/crna-entry.js",
"scripts": {
"start": "react-native-scripts start",
"eject": "react-native-scripts eject",
"android": "react-native-scripts android",
"ios": "react-native-scripts ios",
"test": "jest",
"relay": "relay-compiler --src ./ --schema ./db/schema.json"
},
"jest": {
"preset": "jest-expo"
},
"dependencies": {
"expo": "^27.0.1",
"react": "16.3.1",
"react-dom": "^16.5.0",
"react-native": "~0.55.2",
"react-relay": "^1.6.2"
}
}
已更新
我的app.json具有：
{
"expo": {
"sdkVersion": "27.0.0"
}
}