使用Electron Forge打包Flatpak时遇EACCES权限拒绝错误求助

我尝试用Electron Forge将Electron应用打包为Flatpak格式，反复碰到EACCES权限拒绝错误。已经确认/tmp/electron-packager目录权限正常，切换临时目录后问题依旧存在。Windows环境下运行npx electron-forge make能正常生成Windows包，但Flatpak包始终无法生成。

完整打包日志：

yomen@pop-os:~/Documents/bluebird-teaching-frontend$ DEBUG=electron-forge:* npx electron-forge make
✔ Checking your system

electron-forge:check-system checking system, create ~/.skip-forge-system-check to stop doing this +0ms
❯ Loading configuration
  electron-forge:project-resolver searching for project in: /home/yomen/Documents/bluebird-teaching-frontend +0ms
  electron-forge:project-resolver package.json with forge dependency found in /home/yomen/Documents/bluebird-teaching-frontend/package.json +2ms
  electron-forge:require-search searching [
  '@electron-forge/plugin-auto-unpack-natives',
  '/home/yomen/Documents/bluebird-teaching-frontend/@electron-forge/plugin-auto-unpack-natives',
  '/home/yomen/Documents/bluebird-teaching-frontend/node_modules/@electron-forge/plugin-auto-unpack-natives'
] relative to /home/yomen/Documents/bluebird-teaching-frontend +0ms
  electron-forge:require-search testing @electron-forge/plugin-auto-unpack-natives +1ms
✔ Loading configuration
❯ Resolving make targets
  electron-forge:require-search searching [
  '@electron-forge/maker-squirrel',
  '/home/yomen/Documents/bluebird-teaching-frontend/@electron-forge/maker-squirrel',
  '/home/yomen/Documents/bluebird-teaching-frontend/node_modules/@electron-forge/maker-squirrel'
] relative to /home/yomen/Documents/bluebird-teaching-frontend +1ms
  electron-forge:require-search testing @electron-forge/maker-squirrel +0ms
  electron-forge:require-search searching [
  '@electron-forge/maker-flatpak',
  '/home/yomen/Documents/bluebird-teaching-frontend/@electron-forge/maker-flatpak',
  '/home/yomen/Documents/bluebird-teaching-frontend/node_modules/@electron-forge/maker-flatpak'
] relative to /home/yomen/Documents/bluebird-teaching-frontend +16ms
  electron-forge:require-search testing @electron-forge/maker-flatpak +0ms
› Making for the following targets: 
✔ Resolving make targets
❯ Running package command
❯ Preparing to package application
  electron-forge:project-resolver searching for project in: /home/yomen/Documents/bluebird-teaching-frontend +72ms
  electron-forge:project-resolver package.json with forge dependency found in /home/yomen/Documents/bluebird-teaching-frontend/package.json +1ms
  electron-forge:require-search searching [
  '@electron-forge/plugin-auto-unpack-natives',
  '/home/yomen/Documents/bluebird-teaching-frontend/@electron-forge/plugin-auto-unpack-natives',
  '/home/yomen/Documents/bluebird-teaching-frontend/node_modules/@electron-forge/plugin-auto-unpack-natives'
] relative to /home/yomen/Documents/bluebird-teaching-frontend +43ms
  electron-forge:require-search testing @electron-forge/plugin-auto-unpack-natives +0ms
✔ Preparing to package application
❯ Running packaging hooks
❯ Running generateAssets hook
✔ Running generateAssets hook
❯ Running prePackage hook
✔ Running prePackage hook
✔ Running packaging hooks
❯ Packaging application
› Determining targets...
  electron-forge:packager packaging with options {
  asar: { unpack: '{**/*.node,**/*.node}' },
  overwrite: true,
  ignore: [ /^\/out\//g ],
  quiet: true,
  dir: '/home/yomen/Documents/bluebird-teaching-frontend',
  arch: 'x64',
  platform: 'linux',
  afterFinalizePackageTargets: [ [AsyncFunction (anonymous)] ],
  afterComplete: [ [AsyncFunction (anonymous)] ],
  afterCopy: [ [AsyncFunction (anonymous)] ],
  afterExtract: [ [AsyncFunction (anonymous)] ],
  afterPrune: [ [AsyncFunction (anonymous)] ],
  out: '/home/yomen/Documents/bluebird-teaching-frontend/out',
  electronVersion: '31.3.0'
} +0ms
  electron-forge:packager targets: [ { platform: 'linux', arch: 'x64' } ] +3ms
❯ Packaging for x64 on linux
❯ Copying files
❯ Preparing native dependencies
❯ Finalizing package
✔ Copying files

An unhandled rejection has occurred inside Forge:
Error: EACCES: permission denied, scandir '/tmp/electron-packager/tmp-iytJkX/resources/app/build-dir/var/run/chrony'

ls -ld命令执行结果：

yomen@pop-os:~/Documents/bluebird-teaching-frontend$ ls -ld /tmp/electron-packager/
drwxrwxr-x 3 yomen yomen 4096 Jul 28 16:49 /tmp/electron-packager/

解决方案 #

1. 修正打包忽略规则，排除系统目录 #

错误路径中的/var/run/chrony是系统时间同步服务的运行目录，正常不应被纳入应用打包范围。检查并调整Electron Forge的打包配置：

• 打开项目的forge.config.js（或forge.config.ts），在packagerConfig.ignore中添加对系统目录的忽略规则：

  module.exports = {
    packagerConfig: {
      ignore: [
        /^\/out\//,
        /^\/var\//,
        /^\/tmp\//,
        /^\/run\//
      ]
    },
    // 其他配置项...
  };
  

• 同时检查package.json的files字段，确保没有误包含系统路径。

2. 清理构建产物中的无效路径引用 #

如果构建工具（如Webpack、Vite）在输出目录中生成了指向系统目录的文件或符号链接，会导致Electron Packager尝试扫描无权限访问的路径：

• 手动删除构建输出目录（如build-dir）下的var目录，重新执行打包命令。
• 排查构建工具配置，确保不会将系统路径写入构建产物。

3. 指定自定义临时目录 #

尝试手动指定一个完全可控的临时目录，避免系统tmp目录的权限限制：

# 创建自定义临时目录
mkdir -p ~/electron-build-tmp
chmod 777 ~/electron-build-tmp
# 临时设置环境变量指定临时目录
export ELECTRON_PACKAGER_TMPDIR=~/electron-build-tmp
# 重新执行打包
DEBUG=electron-forge:* npx electron-forge make

4. 验证Flatpak构建环境 #

确保Flatpak相关依赖已正确安装：

sudo apt install flatpak flatpak-builder
flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

若问题依旧，可尝试直接用flatpak-builder测试构建流程，定位是否为Electron Forge封装环节的问题。

内容的提问来源于stack exchange，提问作者Yomen Tohmaz