diff --git a/docs/Options.md b/docs/Options.md
index 86d8a4a046e..e1a5585166b 100644
--- a/docs/Options.md
+++ b/docs/Options.md
@@ -82,7 +82,7 @@ Don't customize paths to background and icon, — just follow conventions.
 | snap | <a name="BuildMetadata-snap"></a>See [.build.snap](#SnapOptions).
 | compression | <a name="BuildMetadata-compression"></a>The compression level, one of `store`, `normal`, `maximum` (default: `normal`). If you want to rapidly test build, `store` can reduce build time significantly.
 | afterPack | <a name="BuildMetadata-afterPack"></a>*programmatic API only* The function to be run after pack (but before pack into distributable format and sign). Promise must be returned.
-| beforeBuild | <a name="BuildMetadata-beforeBuild"></a>*programmatic API only* The function to be run before dependencies from package.json are installed or rebuilt. Promise must be returned. Resolving to false will skip dependencies install or rebuild.
+| beforeBuild | <a name="BuildMetadata-beforeBuild"></a>*programmatic API only* The function to be run before dependencies are installed or rebuilt. Works when `npmRebuild` is set to `true`. Promise must be returned. Resolving to `false` will skip dependencies install or rebuild.
 | npmRebuild | <a name="BuildMetadata-npmRebuild"></a>Whether to [rebuild](https://docs.npmjs.com/cli/rebuild) native dependencies (`npm rebuild`) before starting to package the app. Defaults to `true`.
 | npmSkipBuildFromSource | <a name="BuildMetadata-npmSkipBuildFromSource"></a>Whether to omit using [--build-from-source](https://github.com/mapbox/node-pre-gyp#options) flag when installing app native deps. Defaults to `false`.
 | npmArgs | <a name="BuildMetadata-npmArgs"></a>Additional command line arguments to use when installing app native deps. Defaults to `null`.
diff --git a/packages/electron-builder/src/metadata.ts b/packages/electron-builder/src/metadata.ts
index 2dac838b4ff..3d455cdb207 100755
--- a/packages/electron-builder/src/metadata.ts
+++ b/packages/electron-builder/src/metadata.ts
@@ -4,7 +4,7 @@ import { MacOptions, DmgOptions, MasBuildOptions } from "./options/macOptions"
 import { Publish } from "electron-builder-http/out/publishOptions"
 import { WinBuildOptions, NsisOptions, SquirrelWindowsOptions, AppXOptions } from "./options/winOptions"
 import { LinuxBuildOptions, SnapOptions } from "./options/linuxOptions"
-import { Arch } from "electron-builder-core"
+import { Arch, Platform } from "electron-builder-core"
 
 export interface Metadata {
   readonly repository?: string | RepositoryInfo | null
@@ -198,7 +198,7 @@ export interface BuildMetadata {
   readonly afterPack?: (context: AfterPackContext) => Promise<any> | null
 
   /*
-   *programmatic API only* The function to be run before dependencies from package.json are installed or rebuilt. Works when `npmRebuild` is set to `true`. Promise must be returned. Resolving to false will skip dependencies install or rebuild.
+   *programmatic API only* The function to be run before dependencies are installed or rebuilt. Works when `npmRebuild` is set to `true`. Promise must be returned. Resolving to `false` will skip dependencies install or rebuild.
    */
   readonly beforeBuild?: (context: BeforeBuildContext) => Promise<any> | null
 
diff --git a/packages/electron-builder/src/platformPackager.ts b/packages/electron-builder/src/platformPackager.ts
index 2125daadd7f..d2268d12821 100644
--- a/packages/electron-builder/src/platformPackager.ts
+++ b/packages/electron-builder/src/platformPackager.ts
@@ -1,7 +1,7 @@
 import { AppMetadata, DevMetadata, PlatformSpecificBuildOptions, FileAssociation, BuildMetadata, getDirectoriesConfig } from "./metadata"
 import BluebirdPromise from "bluebird-lst-c"
 import * as path from "path"
-import { readdir, remove, rename, Stats } from "fs-extra-p"
+import { readdir, remove, rename } from "fs-extra-p"
 import { use, isEmptyOrSpaces, asArray, debug } from "electron-builder-util"
 import { Packager } from "./packager"
 import { AsarOptions } from "asar-electron-builder"
@@ -183,7 +183,7 @@ export abstract class PlatformPackager<DC extends PlatformSpecificBuildOptions>
       return
     }
 
-    const asarOptions = this.computeAsarOptions(platformSpecificBuildOptions)
+    const asarOptions = await this.computeAsarOptions(platformSpecificBuildOptions)
     const fileMatchOptions: FileMatchOptions = {
       arch: Arch[arch],
       os: this.platform.buildConfigurationKey
@@ -306,7 +306,7 @@ export abstract class PlatformPackager<DC extends PlatformSpecificBuildOptions>
     return null
   }
 
-  private computeAsarOptions(customBuildOptions: DC): AsarOptions | null {
+  private async computeAsarOptions(customBuildOptions: DC): Promise<AsarOptions | null> {
     function errorMessage(name: string) {
       return `${name} is deprecated is deprecated and not supported — please use build.asarUnpack`
     }
@@ -322,13 +322,12 @@ export abstract class PlatformPackager<DC extends PlatformSpecificBuildOptions>
     const platformSpecific = customBuildOptions.asar
     const result = platformSpecific == null ? this.config.asar : platformSpecific
     if (result === false) {
-      statOrNull(path.join(this.info.appDir, "app.asar"))
-        .then((appAsarStat: Stats | null) => {
-          if (!appAsarStat || !appAsarStat.isFile()) {
-            warn("Packaging using asar archive is disabled — it is strongly not recommended.\n" +
-              "Please enable asar and use asarUnpack to unpack files that must be externally available.")
-          }
-        })
+      const appAsarStat = await statOrNull(path.join(this.info.appDir, "app.asar"))
+      //noinspection ES6MissingAwait
+      if (appAsarStat == null || !appAsarStat.isFile()) {
+        warn("Packaging using asar archive is disabled — it is strongly not recommended.\n" +
+          "Please enable asar and use asarUnpack to unpack files that must be externally available.")
+      }
       return null
     }
 
@@ -444,8 +443,11 @@ export abstract class PlatformPackager<DC extends PlatformSpecificBuildOptions>
       if (outStat == null) {
         throw new Error(`${messagePrefix} "${relativeFile}" does not exist. Seems like a wrong configuration.`)
       }
-      else if (!outStat.isFile()) {
-        throw new Error(`${messagePrefix} "${relativeFile}" is not a file. Seems like a wrong configuration.`)
+      else {
+        //noinspection ES6MissingAwait
+        if (!outStat.isFile()) {
+          throw new Error(`${messagePrefix} "${relativeFile}" is not a file. Seems like a wrong configuration.`)
+        }
       }
     }
   }
@@ -455,8 +457,11 @@ export abstract class PlatformPackager<DC extends PlatformSpecificBuildOptions>
     if (outStat == null) {
       throw new Error(`Output directory "${appOutDir}" does not exist. Seems like a wrong configuration.`)
     }
-    else if (!outStat.isDirectory()) {
-      throw new Error(`Output directory "${appOutDir}" is not a directory. Seems like a wrong configuration.`)
+    else {
+      //noinspection ES6MissingAwait
+      if (!outStat.isDirectory()) {
+        throw new Error(`Output directory "${appOutDir}" is not a directory. Seems like a wrong configuration.`)
+      }
     }
 
     const resourcesDir = this.getResourcesDir(appOutDir)
diff --git a/test/src/BuildTest.ts b/test/src/BuildTest.ts
index 69c3be21f2a..6e66f06d958 100644
--- a/test/src/BuildTest.ts
+++ b/test/src/BuildTest.ts
@@ -192,22 +192,6 @@ test("beforeBuild", () => {
   })
 })
 
-// ifMac("app-executable-deps", () => {
-//   return assertPack("app-executable-deps", {
-//     targets: Platform.current().createTarget(DIR_TARGET),
-//   }, {
-//     useTempDir: false,
-//     packed: async context => {
-//       const data = await readJson(path.join(context.outDir, "mac/app-executable-deps.app/Contents/Resources/app.asar.unpacked", "node_modules", "node-notifier", "package.json"))
-//       for (const name of Object.getOwnPropertyNames(data)) {
-//         if (name[0] === "_") {
-//           throw new Error("Property name starts with _")
-//         }
-//       }
-//     }
-//   })
-// })
-
 test.ifDevOrLinuxCi("smart unpack", () => {
   return assertPack("test-app-one", {
     targets: Platform.LINUX.createTarget(DIR_TARGET),