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~
学无止境，合作共赢

欢迎路过的小哥哥小姐姐们提出更好的意见哇~~