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07-Other/Node.js/Electron/解决使用electron-packager打包时因下载包失败而导致打包失败的问题.md

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+## 修改electron-packager代码
+首先确认electron-packager安装位置（全局或者局部），之后进入`node_modules\electron-packager\`路径。使用VSCode搜索`packageForPlatformAndArch`。代码如下：
+```c#
+packageForPlatformAndArch (downloadOpts) {
+    return download.downloadElectronZip(downloadOpts)
+      .then(zipPath => {
+        // Create delegated options object with specific platform and arch, for output directory naming
+        const comboOpts = Object.assign({}, this.opts, {
+          arch: downloadOpts.arch,
+          platform: downloadOpts.platform,
+          electronVersion: downloadOpts.version
+        })
+
+        if (!this.useTempDir) {
+          return this.createApp(comboOpts, zipPath)
+        }
+
+        if (common.isPlatformMac(comboOpts.platform)) {
+          /* istanbul ignore else */
+          if (this.canCreateSymlinks === undefined) {
+            return this.testSymlink(comboOpts, zipPath)
+          } else if (!this.canCreateSymlinks) {
+            return this.skipHostPlatformSansSymlinkSupport(comboOpts)
+          }
+        }
+
+        return this.checkOverwrite(comboOpts, zipPath)
+      })
+  }
+```
+
+添加逻辑：
+```
+let zipFile="electron-v11.2.1-win32-x64.zip";
+console.log(__dirname);
+let HasFile=fs.existsSync(zipFile);
+if(HasFile)
+{
+  const comboOpts = Object.assign({}, this.opts, {
+    arch: downloadOpts.arch,
+    platform: downloadOpts.platform,
+    electronVersion: downloadOpts.version
+  })
+
+  if (!this.useTempDir) {
+    return this.createApp(comboOpts, zipFile)
+  }
+
+  if (common.isPlatformMac(comboOpts.platform)) {
+    /* istanbul ignore else */
+    if (this.canCreateSymlinks === undefined) {
+      return this.testSymlink(comboOpts, zipFile)
+    } else if (!this.canCreateSymlinks) {
+      return this.skipHostPlatformSansSymlinkSupport(comboOpts)
+    }
+  }
+
+  return this.checkOverwrite(comboOpts, zipFile)
+}
+```
+其中执行路径即为项目根目录，直接将zip放在项目目录中即可。