开始一个新的本地反应项目，然后单击链接react native cli quickstart approach。即使我没有做任何代码更改，当我运行npx react-native run-android
版本信息：
"react": "16.9.0",
"react-native": "0.61.5"
错误信息：
:ReactNative:Failed to parse React Native CLI configuration: groovy.json.JsonException: Unable to determine the current character, it is not a string, number, array, or object
The current character read is 'I' with an int value of 73
Unable to determine the current character, it is not a string, number, array, or object
line number 1
index number 0
FAILURE: Build failed with an exception.
* Where:
Script 'D:\xp\feb2020xp\AwesomeProject\node_modules\@react-native-community\cli-platform-android\native_modules.gradle' line: 200
* What went wrong:
A problem occurred evaluating script.
> Failed to parse React Native CLI configuration. Expected running 'npx.cmd --quiet --no-install react-native config' command from 'D:\xp\feb2020xp\AwesomeProject' directory to output valid JSON, but it didn't. This may be caused by npx resolving to a legacy global react-native binary. Please make sure to uninstall any global 'react-native' binaries: 'npm uninstall -g react-native react-native-cli' and try again
我尝试过的内容：npm uninstall -g react-native react-native-cli和npx.cmd --quiet --no-install react-native config
来自第二个命令的控制台输出：
{
"root": "D:\\xp\\feb2020xp\\AwesomeProject",
"reactNativePath": "D:\\xp\\feb2020xp\\AwesomeProject\\node_modules\\react-native",
"dependencies": {},
"commands": [
{
"name": "log-ios",
"description": "starts iOS device syslog tail"
},
{
"name": "run-ios",
"description": "builds your app and starts it on iOS simulator",
"examples": [
{
"desc": "Run on a different simulator, e.g. iPhone 5",
"cmd": "react-native run-ios --simulator \"iPhone 5\""
},
{
"desc": "Pass a non-standard location of iOS directory",
"cmd": "react-native run-ios --project-path \"./app/ios\""
},
{
"desc": "Run on a connected device, e.g. Max's iPhone",
"cmd": "react-native run-ios --device \"Max's iPhone\""
},
{
"desc": "Run on the AppleTV simulator",
"cmd": "react-native run-ios --simulator \"Apple TV\" --scheme \"helloworld-tvOS\""
}
],
"options": [
{
"name": "--simulator [string]",
"description": "Explicitly set simulator to use. Optionally include iOS version betweenparenthesis at the end to match an exact version: \"iPhone 6 (10.0)\"",
"default": "iPhone 11"
},
{
"name": "--configuration [string]",
"description": "Explicitly set the scheme configuration to use",
"default": "Debug"
},
{
"name": "--scheme [string]",
"description": "Explicitly set Xcode scheme to use"
},
{
"name": "--project-path [string]",
"description": "Path relative to project root where the Xcode project (.xcodeproj) lives.",
"default": "ios"
},
{
"name": "--device [string]",
"description": "Explicitly set device to use by name. The value is not required if you have a single device connected."
},
{
"name": "--udid [string]",
"description": "Explicitly set device to use by udid"
},
{
"name": "--no-packager",
"description": "Do not launch packager while building"
},
{
"name": "--verbose",
"description": "Do not use xcpretty even if installed"
},
{
"name": "--port [number]",
"default": 8081
},
{
"name": "--terminal [string]",
"description": "Launches the Metro Bundler in a new window using the specified terminal path."
}
]
},
{
"name": "log-android",
"description": "starts logkitty"
},
{
"name": "run-android",
"description": "builds your app and starts it on a connected Android emulator or device",
"options": [
{
"name": "--root [string]",
"description": "Override the root directory for the android build (which contains the android directory)",
"default": ""
},
{
"name": "--variant [string]",
"description": "Specify your app's build variant",
"default": "debug"
},
{
"name": "--appFolder [string]",
"description": "Specify a different application folder name for the android source. If not, we assume is \"app\"",
"default": "app"
},
{
"name": "--appId [string]",
"description": "Specify an applicationId to launch after build.",
"default": ""
},
{
"name": "--appIdSuffix [string]",
"description": "Specify an applicationIdSuffix to launch after build.",
"default": ""
},
{
"name": "--main-activity [string]",
"description": "Name of the activity to start",
"default": "MainActivity"
},
{
"name": "--deviceId [string]",
"description": "builds your app and starts it on a specific device/simulator with the given device id (listed by running \"adb devices\" on the command line)."
},
{
"name": "--no-packager",
"description": "Do not launch packager while building"
},
{
"name": "--port [number]",
"default": 8081
},
{
"name": "--terminal [string]",
"description": "Launches the Metro Bundler in a new window using the specified terminal path."
},
{
"name": "--tasks [list]",
"description": "Run custom Gradle tasks. By default it's \"installDebug\""
},
{
"name": "--no-jetifier",
"description": "Do not run \"jetifier\" – the AndroidX transition tool. By default it runs before Gradle to ease working with libraries that don't support AndroidX yet. See more at: https://www.npmjs.com/package/jetifier.",
"default": false
}
]
}
],
"assets": [],
"platforms": {
"ios": {},
"android": {}
},
"haste": {
"providesModuleNodeModules": [
"react-native"
],
"platforms": [
"ios",
"android"
]
},
"project": {
"ios": {
"sourceDir": "D:\\xp\\feb2020xp\\AwesomeProject\\ios",
"folder": "D:\\xp\\feb2020xp\\AwesomeProject",
"pbxprojPath": "D:\\xp\\feb2020xp\\AwesomeProject\\ios\\AwesomeProject.xcodeproj\\project.pbxproj",
"podfile": "D:\\xp\\feb2020xp\\AwesomeProject\\ios\\Podfile",
"podspecPath": null,
"projectPath": "D:\\xp\\feb2020xp\\AwesomeProject\\ios\\AwesomeProject.xcodeproj",
"projectName": "AwesomeProject.xcodeproj",
"libraryFolder": "Libraries",
"sharedLibraries": [],
"plist": [],
"scriptPhases": []
},
"android": {
"sourceDir": "D:\\xp\\feb2020xp\\AwesomeProject\\android\\app",
"isFlat": false,
"folder": "D:\\xp\\feb2020xp\\AwesomeProject",
"stringsPath": "D:\\xp\\feb2020xp\\AwesomeProject\\android\\app\\src\\main\\res\\values\\strings.xml",
"manifestPath": "D:\\xp\\feb2020xp\\AwesomeProject\\android\\app\\src\\main\\AndroidManifest.xml",
"buildGradlePath": "D:\\xp\\feb2020xp\\AwesomeProject\\android\\app\\build.gradle",
"settingsGradlePath": "D:\\xp\\feb2020xp\\AwesomeProject\\android\\settings.gradle",
"assetsPath": "D:\\xp\\feb2020xp\\AwesomeProject\\android\\app\\src\\main\\assets",
"mainFilePath": "D:\\xp\\feb2020xp\\AwesomeProject\\android\\app\\src\\main\\java\\com\\awesomeproject\\MainApplication.java",
"packageName": "com.awesomeproject"
}
}
}
我无法找出问题所在。请帮助我解决错误。谢谢。
我遇到了类似的问题。我的问题原来是文件android/app/src/main/AndroidManifest.xml中的语法错误。
具体来说，我有一个错误的部分，例如android:screenOrientation=portrait，而不是正确的android:screenOrientation="portrait"（请注意引号）。>>
尽管问题的具体原因可能与您不匹配，但它可能希望为您提供潜在解决方案的提示。