关键依赖：依赖的请求是表达式

Question

我试图在我的覆盆子pi 3模型B上为项目添加gpio支持但是当我尝试为我的应用程序提供服务时，我仍然遇到绑定错误。当我尝试使用任何其他gpio包时，此问题仍然存在。

WARNING in ./node_modules/rpi-gpio/node_modules/bindings/bindings.js
76:22-40 Critical dependency: the request of a dependency is an expression
...
...
...
@ ./node_modules/rpi-gpio/node_modules/bindings/bindings.js
@ ./node_modules/rpi-gpio/node_modules/epoll/epoll.js
@ ./node_modules/rpi-gpio/rpi-gpio.js
@ ./src/app/ui/...
@ ./src/app/app.module.ts
@ ./src/main.ts
@ multi webpack-dev-server/client?http://0.0.0.0:0 ./src/main.ts

WARNING in ./node_modules/rpi-gpio/node_modules/bindings/bindings.js
76:43-53 Critical dependency: the request of a dependency is an expression
...
...
...
@ ./node_modules/rpi-gpio/node_modules/bindings/bindings.js
@ ./node_modules/rpi-gpio/node_modules/epoll/epoll.js
@ ./node_modules/rpi-gpio/rpi-gpio.js
@ ./src/app/ui/...
@ ./src/app/app.module.ts
@ ./src/main.ts
@ multi webpack-dev-server/client?http://0.0.0.0:0 ./src/main.ts

我正在尝试使用rpi-gpio（www.npmjs.com/package/rpi-gpio）（我已经单独安装了所有依赖项）。

版本：

• node：v9.3.0（使用nvm）

• npm：5.6.0

• gcc：（Raspbian 6.3.0-18 + rpi1）6.3.0 20170516

的package.json：

{
  "name": "pagode-shotterkas",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^5.1.2",
    "@angular/cdk": "^5.0.2",
    "@angular/common": "^5.1.2",
    "@angular/compiler": "^5.1.2",
    "@angular/core": "^5.1.2",
    "@angular/forms": "^5.1.2",
    "@angular/http": "^5.1.2",
    "@angular/material": "^5.0.2",
    "@angular/platform-browser": "^5.1.2",
    "@angular/platform-browser-dynamic": "^5.1.2",
    "@angular/router": "^5.1.2",
    "angular4-drag-drop": "^1.1.2",
    "bindings": "^1.3.0",
    "cordova-plugin-eid": "^1.0.0",
    "core-js": "^2.5.3",
    "epoll": "^1.0.2",
    "hammerjs": "^2.0.8",
    "nan": "^2.8.0",
    "promise-polyfill": "^6.1.0",
    "rpi-gpio": "^0.9.1",
    "rxjs": "^5.5.6",
    "zone.js": "^0.8.19"
  },
  "devDependencies": {
    "@angular/cli": "^1.6.2",
    "@angular/compiler-cli": "^5.1.2",
    "@angular/language-service": "^5.1.2",
    "@types/jasmine": "~2.5.53",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "^6.0.95",
    "codelyzer": "~3.1.1",
    "jasmine-core": "~2.6.2",
    "jasmine-spec-reporter": "~4.1.0",
    "karma": "~1.7.0",
    "karma-chrome-launcher": "~2.1.1",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^1.3.3",
    "karma-jasmine": "^1.1.1",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.1.2",
    "ts-node": "~3.2.0",
    "tslint": "~5.3.2",
    "typescript": "~2.5.0"
  }
}