diff --git a/src/appInfo.ts b/src/appInfo.ts
index 289224d1b4c..dad7eea84ea 100644
--- a/src/appInfo.ts
+++ b/src/appInfo.ts
@@ -42,19 +42,26 @@ export class AppInfo {
   }
 
   get id(): string {
-    const appId = this.devMetadata.build["app-bundle-id"]
+    let appId = this.devMetadata.build["app-bundle-id"]
     if (appId != null) {
       warn("app-bundle-id is deprecated, please use appId")
     }
 
     if (this.devMetadata.build.appId != null) {
-      return this.devMetadata.build.appId
+      appId = this.devMetadata.build.appId
     }
 
-    if (appId == null) {
+    const generateDefaultAppId = () => {
       return `com.electron.${this.metadata.name.toLowerCase()}`
     }
-    return appId
+
+    if (appId === "your.id" || isEmptyOrSpaces(appId)) {
+      const incorrectAppId = appId
+      appId = generateDefaultAppId()
+      warn(`Do not use "${incorrectAppId}" as appId, "${appId}" will be used instead`)
+    }
+
+    return appId == null ? generateDefaultAppId() : appId
   }
 
   get name(): string {
diff --git a/src/targets/dmg.ts b/src/targets/dmg.ts
index c9ed42362af..3b8fce21829 100644
--- a/src/targets/dmg.ts
+++ b/src/targets/dmg.ts
@@ -4,7 +4,7 @@ import { log, warn } from "../util/log"
 import { Target, PlatformPackager } from "../platformPackager"
 import { MacOptions, DmgOptions, DmgContent } from "../options/macOptions"
 import { Promise as BluebirdPromise } from "bluebird"
-import { debug, use, exec, statOrNull } from "../util/util"
+import { debug, use, exec, statOrNull, isEmptyOrSpaces } from "../util/util"
 import { copy, unlink, outputFile, remove } from "fs-extra-p"
 import { executeFinally } from "../util/promise"
 
@@ -79,7 +79,17 @@ export class DmgTarget extends Target {
         ]
       }
 
-      const location: DmgContent = contents.find(it => it.path == null && it.type !== "link")!
+      let location = contents.find(it => it.path == null && it.type !== "link")
+      if (location == null) {
+        location = contents.find(it => {
+          if (it.path != null && it.path.endsWith(".app") && it.type !== "link") {
+            warn(`Do not specify path for application: "${it.path}". Actual path to app will be used instead.`)
+            return true
+          }
+          return false
+        })!
+      }
+
       const applicationsLocation: DmgContent = contents.find(it => it.type === "link" && (it.path === "/Applications" || it.path === "Applications"))!
 
       const window = specification.window!
@@ -181,7 +191,12 @@ export class DmgTarget extends Target {
     }
 
     if (specification.title != null) {
-      warn("dmg.title is not supported, file issue if need")
+      if (specification.title === packager.appInfo.productName) {
+        warn(`Do not specify unnecessary dmg.title ("${specification.title}") — application name ("${packager.appInfo.productFilename}") is used by default`)
+      }
+      else {
+        warn("dmg.title is not supported, file issue if need")
+      }
     }
 
     if (!("icon" in specification)) {
@@ -190,6 +205,10 @@ export class DmgTarget extends Target {
       })
     }
 
+    if (specification.icon != null && isEmptyOrSpaces(specification.icon)) {
+      throw new Error("dmg.icon cannot be specified as empty string")
+    }
+
     if (specification["background-color"] != null) {
       if (specification.backgroundColor == null) {
         specification.backgroundColor = specification["background-color"]