uniapp系列-报错或常见问题处理集锦

问题一：执行完命令，就不动了，或者是uniapp 遇到编译很慢，无法正常运行的情况

情况1：执行run dev命令后，一直就不动了，输出如下

PS C:\XXXXXXXX> npx yarn run dev:h5yarn run v1.22.19warning package.json: No license field$ uni请注意运行模式下，因日志输出、sourcemap 以及未压缩源码等原因，性能和包体积，均不及发行模式。正在编译中...uni-app 有新版本发布，请执行 `npx @dcloudio/uvm alpha` 更新，更新日志详见：https://update.dcloud.net.cn/hbuilderx/changelog/3.7.6.20230227-alpha.html

情况2：输出如下

PS C:\app> npx yarn run dev:h5yarn run v1.22.19warning package.json: No license field$ uniPlease note that in running mode, due to log output, sourcemap, and uncompressed source code, the performance and package size are not as good as release mode.Compiling...

解决方案：

• 通过执行npx @dcloudio/uvm alpha升级依赖

  npx @dcloudio/uvm alpha

  运行之前先检查一下你的package.json 里vite版本，不要被官方给你升级太高了哦，如果有问题，可以参考下文 - 问题十八

  问题二：使用hbuilder打开项目运行，报错如下：

  failed to load config from /xxxxxx/vite.config.ts 09:37:26.975 error when starting dev server: 09:37:26.975 Error: 09:37:26.982 You installed esbuild for another platform than the one you're currently using. 09:37:26.983 This won't work because esbuild is written with native code and needs to 09:37:26.995 install a platform-specific binary executable. 09:37:26.996 Specifically the "esbuild-darwin-arm64" package is present but this platform 09:37:27.004 needs the "esbuild-darwin-64" package instead. People often get into this 09:37:27.004 situation by installing esbuild with npm running inside of Rosetta 2 and then 09:37:27.012 trying to use it with node running outside of Rosetta 2, or vice versa (Rosetta 09:37:27.013 2 is Apple's on-the-fly x86_64-to-arm64 translation service). 09:37:27.021 If you are installing with npm, you can try ensuring that both npm and node are 09:37:27.022 not running under Rosetta 2 and then reinstalling esbuild. This likely involves 09:37:27.030 changing how you installed npm and/or node. For example, installing node with 09:37:27.031 the universal installer here should work: https://nodejs.org/en/download/. Or 09:37:27.042 you could consider using yarn instead of npm which has built-in support for 09:37:27.043 installing a package on multiple platforms simultaneously. 09:37:27.051 If you are installing with yarn, you can try listing both "arm64" and "x64" 09:37:27.051 in your ".yarnrc.yml" file using the "supportedArchitectures" feature: 09:37:27.061 https://yarnpkg.com/configuration/yarnrc/#supportedArchitectures 09:37:27.062 Keep in mind that this means multiple copies of esbuild will be present. 09:37:27.071 Another alternative is to use the "esbuild-wasm" package instead, which works 09:37:27.071 the same way on all platforms. But it comes with a heavy performance cost and 09:37:27.080 can sometimes be 10x slower than the "esbuild" package, so you may also not 09:37:27.090 want to do that.09:37:27.090     at generateBinPath (/xxxxxx/node_modules/esbuild/lib/main.js:1799:17)09:37:27.099     at esbuildCommandAndArgs (/xxxxxx/node_modules/esbuild/lib/main.js:1875:33)09:37:27.100     at ensureServiceIsRunning (/xxxxxx/node_modules/esbuild/lib/main.js:2040:25)09:37:27.110     at build (/xxxxxx/node_modules/esbuild/lib/main.js:1931:26)09:37:27.111     at bundleConfigFile (file:///xxxxxx/node_modules/vite/dist/node/chunks/dep-51c4f80a.js:62735:26)09:37:27.122     at loadConfigFromFile (file:///xxxxxx/node_modules/vite/dist/node/chunks/dep-51c4f80a.js:62711:31)09:37:27.133     at resolveConfig (file:///xxxxxx/node_modules/vite/dist/node/chunks/dep-51c4f80a.js:62336:34)09:37:27.144     at Module.createServer (file:///xxxxxx/node_modules/vite/dist/node/chunks/dep-51c4f80a.js:61636:26)09:37:27.156     at /xxxxxx/node_modules/vite/index.cjs:22:5509:37:27.167     at async createServer (/xxxxxx/node_modules/@dcloudio/vite-plugin-uni/dist/cli/server.js:16:20)

  解决方案：

  • step1: 运行 yarn install下载依赖
  • step2: 把src拖进hbuilder，而不是整个项目
  • step3: 运行测试

    如果方案一执行结束，提示 项目缺少index.html,请继续往下看，按方案二解决：

    在HBuilder中运行脚手架项目需要在HBuilder的cli安装依赖。如果项目要运行到App端，那么建议你在HBuilder中运行脚手架项目,

    造成这种原因是因为你的依赖是从外部的终端安装的

    • step1: 卸载删除所有依赖
    • step2: 整个项目都用hbuilder打开
    • step3: 在HBuilder中打开命令行工具，使用npm install / yarn install重新安装依赖
    • step4: 运行测试
    • step5: 如果以上步骤执行完毕还是不行
    • step6: 删除依赖
    • step7: 运行 npx @dcloudio/uvm alpha ，运行之前先检查一下你的package.json 里vite版本，不要被官方给你升级太高了哦，如果有问题，可以参考下文-问题十八
    • step8: 使用npm install / yarn install重新安装依赖
    • step9: 运行测试

      问题三：uniapp不同尺寸设计稿，写代码的时候如何进行尺寸自动转换？

      解决方案：配置流程如下

      问题四：真机运行报错：plus is not defined

      当你遇到这个报错：uni-app [system]ReferenceError: plus is not defined

      原因如下：

      • plus是5+Runtime的内部对象
      • web浏览器里没有plus环境
      • 真机运行、打包后、或流应用环境下才能运行plus api

        解决方案

        • step1. 添加条件编译

          import { onLoad, onShow, onReady} from '@dcloudio/uni-app';onReady(() => { /* #ifdef APP-PLUS */ plus.navigator.setStatusBarStyle('dark'); /* #endif */});onShow(() => { /* #ifdef APP-PLUS */ plus.navigator.setStatusBarStyle('dark'); /* #endif */});

          • step2. 使用真机或者模拟器运行

            问题五：uniapp如何打包wgt格式

            build

            首次打包，需要配置AppId

            登录dcloud开发者中心 点击直达

            创建应用

            将生成的AppId配置到项目manifest.json中

            开始打包

            打包成功

            问题六：uniapp打包提示打包时未添加push模块

            解决方案：打开manifest.json，找到sdkConfigs，把push删掉即可。

            /* SDK配置 */            "sdkConfigs" : {                "ad" : {},                "push" : {                    "unipush" : {}                },　　}

            问题七：uniapp打包配置忽略版本号提示

            解决方案：

             "compatible": {      "ignoreVersion": true    },

            问题八：如何禁止uni-app过度滚动拉伸动画,禁止手指滑动缩放正常页面,将回弹属性关掉，通俗得讲，就是不要让一个看起来无法滑动的页面，可以滑动

            解决方案：在pages.json中添加配置

            • 全局配置：

              "globalStyle": {  "app-plus":{  "bounce":"none" // 将回弹属性关掉  }},

              • 单页面配置：

                {  "path" : "",  "style" : {    "navigationBarTitleText": "",    "app-plus":{      "bounce":"none" // 将回弹属性关掉    }}

                问题九：如何获取app的版本号

                解决方案：

                // #ifdef APP-PLUS // 获取当前应用版本号 plus.runtime.getProperty(plus.runtime.appid, (widgetInfo) => { this.edition = widgetInfo.version; }); // #endif复制代码

                问题十：如何隐藏滚动条

                解决方案：

                "app-plus": {"scrollIndicator":"none" //当前页面不显示滚动条}

                问题十一：禁用页面右滑手势（页面向右滑动的时候，返回上一个页面）

                解决方案一：（仅支持ios）

                pages.json文件中配置"disableSwipeBack": true

                {"pages": [ {"path": "pages/index/index","style": {"navigationBarTitleText": "我是原生title","disableSwipeBack": true, // 禁止IOS页面右滑手势}}],"globalStyle": {"navigationBarTextStyle": "black","navigationBarTitleText": "uQRCode","navigationBarBackgroundColor": "#F8F8F8","backgroundColor": "#F8F8F8"}}

                解决方案二：(需要测试是否安卓 ios均支持，这个大家测试一下吧，我今天有点忙没时间测试啦哈哈）

                全局禁止在manifestjson中配置 “popGesture”: “none”

                {    "name" : "unidemo",    "appid" : "__UNI__226E1FC",    "description" : "",    "versionName" : "1.0.0",    "versionCode" : "100",    "transformPx" : false,    /* 5+App特有相关 */    "app-plus" : {        "popGesture": "none", // 侧滑返回功能        "bounce":"none", //去除回弹熟悉        "safearea" : {            //安全区域配置，仅iOS平台生效                "background" : "#F5F6F9", //安全区域外的背景颜色，默认值为"#FFFFFF"                "bottom" : {                // 底部安全区域配置                    "offset" : "none|auto" // 底部安全区域偏移，"none"表示不空出安全区域，"auto"自动计算空出安全区域，默认值为"none"                }        },        "usingComponents" : true,        "nvueCompiler" : "uni-app",        "splashscreen" : {            "alwaysShowBeforeRender" : true,            "waiting" : true,            "autoclose" : true,            "delay" : 0        },        /* 模块配置 */        "modules" : {},        /* 应用发布信息 */        "distribute" : {            /* android打包配置 */            "android" : {                "permissions" : [                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    "",                    ""                ]            },            /* ios打包配置 */            "ios" : {                "dSYMs" : false            },            /* SDK配置 */            "sdkConfigs" : {                "ad" : {}            },            "icons" : {                "android" : {                    "hdpi" : "unpackage/res/icons/72x72.png",                    "xhdpi" : "unpackage/res/icons/96x96.png",                    "xxhdpi" : "unpackage/res/icons/144x144.png",                    "xxxhdpi" : "unpackage/res/icons/192x192.png"                },                "ios" : {                    "appstore" : "unpackage/res/icons/1024x1024.png",                    "ipad" : {                        "app" : "unpackage/res/icons/76x76.png",                        "app@2x" : "unpackage/res/icons/152x152.png",                        "notification" : "unpackage/res/icons/20x20.png",                        "notification@2x" : "unpackage/res/icons/40x40.png",                        "proapp@2x" : "unpackage/res/icons/167x167.png",                        "settings" : "unpackage/res/icons/29x29.png",                        "settings@2x" : "unpackage/res/icons/58x58.png",                        "spotlight" : "unpackage/res/icons/40x40.png",                        "spotlight@2x" : "unpackage/res/icons/80x80.png"                    },                    "iphone" : {                        "app@2x" : "unpackage/res/icons/120x120.png",                        "app@3x" : "unpackage/res/icons/180x180.png",                        "notification@2x" : "unpackage/res/icons/40x40.png",                        "notification@3x" : "unpackage/res/icons/60x60.png",                        "settings@2x" : "unpackage/res/icons/58x58.png",                        "settings@3x" : "unpackage/res/icons/87x87.png",                        "spotlight@2x" : "unpackage/res/icons/80x80.png",                        "spotlight@3x" : "unpackage/res/icons/120x120.png"                    }                }            },            "splashscreen" : {                "androidStyle" : "common",                "android" : {                    "hdpi" : "C:/Users/xxx/Desktop/uniapp/LaunchImage/LaunchImage/640x 960.png",                    "xhdpi" : "C:/Users/xxx/Desktop/uniapp/LaunchImage/LaunchImage/750x1334.png",                    "xxhdpi" : "C:/Users/xxx/Desktop/uniapp/LaunchImage/LaunchImage/1125x2436.png"                },                "iosStyle" : "common"            }        }    },    /* 快应用特有相关 */    "quickapp" : {},    /* 小程序特有相关 */    "mp-weixin" : {        "appid" : "",        "setting" : {            "urlCheck" : false        },        "usingComponents" : true    },    "mp-alipay" : {        "usingComponents" : true    },    "mp-baidu" : {        "usingComponents" : true    },    "mp-toutiao" : {        "usingComponents" : true    },    "h5" : {        "title" : "uQRCode二维码生成插件示例",        "domain" : "www",        "router" : {            "base" : "./",            "mode" : "history"        }    }}

                单页面调用

                // 单页面调用5+ Api// #ifdef APP-PLUSvar page = this.$mp.page.$getAppWebview();page.setStyle({ popGesture: 'none' });// #endif

                单页面还可以在pages.json文件这么配置

                {    "path": "pages/xxx/xxx",    "style": {        ...        "app-plus": {            "popGesture": "none", // 禁用侧滑            "bounce": "none" // 禁用上下拖动页面        }    }},

                问题十二：安全区域配置

                解决方案：安全区域配置，下面内容仅iOS平台生效 全平台生效解决方案参考：uniapp系列-改变底部安全区-顶部的手机信号、时间、电池栏颜色样式

                {  "name" : "unidemo",  "appid" : "__UNI__226E1FC",  "description" : "",  "versionName" : "1.0.0",  "versionCode" : "100",  "transformPx" : false,  /* 5+App特有相关 */  "app-plus" : {      "safearea" : {          //安全区域配置，仅iOS平台生效              "background" : "#F5F6F9", //安全区域外的背景颜色，默认值为"#FFFFFF"              "bottom" : {              // 底部安全区域配置                  "offset" : "none|auto" // 底部安全区域偏移，"none"表示不空出安全区域，"auto"自动计算空出安全区域，默认值为"none"              }      }      } }

                问题十三：自定义头部导航栏navigationStyle并设置title为图片格式

                解决方案：

                {"pages": [ {"path": "pages/index/index","style": {                            "navigationStyle": "custom",                            "titleImage": "https://xxxx/assets/images/title.png" // 图片默认居中摆放}}],"globalStyle": {"navigationBarTextStyle": "black","navigationBarTitleText": "uQRCode","navigationBarBackgroundColor": "#F8F8F8","backgroundColor": "#F8F8F8"}}

                问题十四：配置页面下拉刷新功能

                解决方案：

                pages.json中添加pullToRefresh配置

                "pages": [    {      "path": "pages/home/index",      "style": {        "navigationBarTitleText": "AAAAAAA",        "app-plus": {          "pullToRefresh": {            "support": true,            "color": "#ff3333",            "style": "default",            "contentdown": {              "caption": "pull to refresh..."            },            "contentover": {              "caption": "Loading..."            },            "contentrefresh": {              "caption": "Loading..."            }          }        }      }    },  ]

                页面调用

                import { onPullDownRefresh } from "@dcloudio/uni-app";onPullDownRefresh(() => {  getData();});

                问题十五：获取当前运行平台，设备信息，状态栏高度等

                解决方案：

                const systemInfo = function () {  let systemInfomations = uni.getSystemInfoSync(); // 设备系统信息  let scaleFactor = 750 / systemInfomations.windowWidth; // 机型适配比例系数  let windowHeight = systemInfomations.windowHeight * scaleFactor; // 当前机型-屏幕高度  let windowWidth = systemInfomations.windowWidth * scaleFactor; // 当前机型-屏幕宽度  let statusBarHeight = systemInfomations.statusBarHeight * scaleFactor; //状态栏高度  let platform = uni.getSystemInfoSync().platform; // 运行平台  const uniPlatform = uni.getSystemInfoSync().uniPlatform; // 运行环境  return {    scaleFactor,    windowHeight,    windowWidth,    statusBarHeight,    platform,    uniPlatform,  };};export { systemInfo };

                问题十六：解决自定义导航栏安卓和ios页面顶部显示兼容性问题

                解决方案：（会有更好的方案，欢迎小伙伴们在评论区交流，大家互相学习哇~~）

                此种问题发生前提：我们使用的是自定义导航栏，你的pages.json一定是这样：

                pages": [    {      "path": "pages/login/index",      "style": {        "navigationStyle": "custom" // 取消原生导航,使用自定义导航栏      }    }]

                我们可以通过引入上面的systemInfo，我们给页面添加一个动态样式，就解决了这个问题

                      页面内容  import { systemInfo } from '../../utils/system';console.log('systemInfo', systemInfo());const platformClass = `${systemInfo().uniPlatform}-${systemInfo().platform}`;.app-ios{  padding-top: calc(env(safe-area-inset-top));}.app-android{  padding-top: calc(44px + env(safe-area-inset-top));}

                问题十七：Uniapp 配置跨域

                解决方案：

                配置uni-app 中 manifest.json->h5->devServer

                "h5": {    "devServer": {      "proxy": {        "/xiaojinAPI": {          "target": "https://xiaojin.com",          "changeOrigin": true,          "secure": false        }      }    }  }

                问题十八：[ERROR] Cannot start service: Host version “0.16.17” does not match binary version “0.15.18”

                17:57:38.395 正在编译中...17:57:38.688 ✘ [ERROR] Cannot start service: Host version "0.16.17" does not match binary version "0.15.18"17:57:38.689 1 error17:57:38.697 failed to load config from /Users/xxxxxx/vite.config.ts17:57:38.697 error when starting dev server:17:57:38.708 Error: The service was stopped17:57:38.720     at /Users/xxxxxx/node_modules/esbuild/lib/main.js:1145:2517:57:38.721     at Object.responseCallbacks. (/Users/xxxxxx/node_modules/esbuild/lib/main.js:701:9)17:57:38.728     at Socket.afterClose (/Users/xxxxxx/node_modules/esbuild/lib/main.js:691:28)17:57:38.728     at Socket.emit (node:events:525:35)17:57:38.734     at endReadableNT (node:internal/streams/readable:1358:12)17:57:38.741     at processTicksAndRejections (node:internal/process/task_queues:83:21)

                解决方案：

                这种通常是因为你的vite版本和项目的版本不兼容，很大原因在于：

                • 你执行了: npx @dcloudio/uvm alpha
                • 官方的命令把vite版本升到4.x，
                • alpha版本是对应HBuilder的alpha版本

                  你应该：

                • step1：使用命令npx @dcloudio/uvm
                • step2：降低package.json内vite版本，把vite降为3.x来进行调试

                  问题二十：uni-app 取消默认的loading 转圈

                  解决方案：

                  "app-plus" : {        /* 5+App特有相关 */        "usingComponents" : true,        //设置 启动界面        "splashscreen" : {            "alwaysShowBeforeRender" : false,            "waiting" : false,            //"autoclose" : true,            "autoclose" : false,            "delay" : 0        },

                  问题二十一：手动关闭启动界面

                  解决方案：

                  onLaunch: function() {                        // #ifdef APP-PLUS            //app关闭默认的启动 方法关闭启动图。但是这个时间不能太晚，6s 超时后依旧会主动关闭。            setTimeout(()=>{                plus.navigator.closeSplashscreen();            },100)            // #endif          }

                  问题二十二：待补充

                  解决方案：

                  今天就写到这里啦~

                  • 小伙伴们，(￣ω￣(￣ω￣〃 (￣ω￣〃)ゝ我们明天再见啦~~
                  • 大家要天天开心哦

                    欢迎大家指出文章需要改正之处~

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