Expo项目app.json配置报错求助：权限字段与资源文件问题

错误信息 #

错误 11:12：验证app.json字段时出错。 • 字段：android.config - 不应包含额外属性'permissions'。
错误 11:12：验证app.json资源字段时出错。 • 字段：android.adaptiveIcon.foregroundImage - 无法访问文件'./assets/adaptive-icon.png'。

详细错误日志：

11:12 Error: Problem validating fields in app.json. 
Learn more: docs.expo.dev/workflow/configuration • Field:   android.config - should NOT 
have additional property 'permissions'. ERROR 11:12 Error: Problems validating asset fields in app.json. Learn more: docs.expo.dev • Field: android.adaptiveIcon.foregroundImage - cannot access file at './assets/adaptive-icon.png'.

原配置代码 #

{
  "expo": {
    "name": "cracash",
    "slug": "cracash",
    "version": "1.0.0",
    "orientation": "portrait",
    "icon": "./assets/icon.png",
    "userInterfaceStyle": "light",
    "splash": {
      "image": "./assets/splash.png",
      "resizeMode": "contain",
      "backgroundColor": "#ffffff"
    },
    "updates": {
      "fallbackToCacheTimeout": 0
    },
    "assetBundlePatterns": [
      "**/*"
    ],
    "ios": {
      "bundleIdentifier": "com.cracash",
      "config": {
        "googleMapsApiKey": "hidden"
      },
      "supportsTablet": true
    },
    "android": {
      "adaptiveIcon": {
        "foregroundImage": "./assets/adaptive-icon.png",
        "backgroundColor": "#FFFFFF"
      },

    "package":"com.cracash", 
    "config" :{
      "googleMaps":{
        "apiKey":"hidden"
      },

     "permissions":["ACCESS_COARSE_LOCATION","ACCESS_FINE_LOCATION","FOREGROUND_SERVICE"]
    }
    },
    "web": {
      "favicon": "./assets/favicon.png"
    }
  }
}

修复方案 #

1. 修正permissions字段位置 #

Expo的Android权限配置不能放在android.config下，需要将permissions数组直接作为android对象的子属性。

2. 修复自适应图标文件问题 #

• 检查项目中./assets/adaptive-icon.png文件是否存在，若不存在：
  • 可以替换成已有的图标路径（比如复用./assets/icon.png）
  • 或者创建符合尺寸要求的自适应图标文件后放入assets目录

修改后的完整配置代码 #

{
  "expo": {
    "name": "cracash",
    "slug": "cracash",
    "version": "1.0.0",
    "orientation": "portrait",
    "icon": "./assets/icon.png",
    "userInterfaceStyle": "light",
    "splash": {
      "image": "./assets/splash.png",
      "resizeMode": "contain",
      "backgroundColor": "#ffffff"
    },
    "updates": {
      "fallbackToCacheTimeout": 0
    },
    "assetBundlePatterns": [
      "**/*"
    ],
    "ios": {
      "bundleIdentifier": "com.cracash",
      "config": {
        "googleMapsApiKey": "hidden"
      },
      "supportsTablet": true
    },
    "android": {
      "adaptiveIcon": {
        "foregroundImage": "./assets/icon.png", // 替换为存在的图标文件路径
        "backgroundColor": "#FFFFFF"
      },
      "package":"com.cracash", 
      "config" :{
        "googleMaps":{
          "apiKey":"hidden"
        }
      },
      "permissions":["ACCESS_COARSE_LOCATION","ACCESS_FINE_LOCATION","FOREGROUND_SERVICE"] // 移到android对象下
    },
    "web": {
      "favicon": "./assets/favicon.png"
    }
  }
}

内容的提问来源于stack exchange，提问作者Khon3001