Facing following issue while executing script:

Checking if an update is available
Launching Appium server with command: C:\Program Files (x86)\Appium\node.exe lib\server\main.js --address 127.0.0.1 --port 4723 --app E:\ZAppium\APK_Folder\net.tecnotopia.SimpleCalculator.apk --platform-name Android --platform-version 17 --automation-name Appium --log-no-color
Update not available
warn: Appium support for versions of node < 0.12 has been deprecated and will be removed in a future version. Please upgrade!
info: Welcome to Appium v1.4.13 (REV c75d8adcb66a75818a542fe1891a34260c21f76a)
info: Appium REST http interface listener started on 127.0.0.1:4723
**info: [debug] Non-default server args: **{“app”:“E:\ZAppium\APK_Folder\net.tecnotopia.SimpleCalculator.apk”,“address”:“127.0.0.1”,“logNoColors”:true,“platformName”:“Android”,“platformVersion”:“17”,“automationName”:“Appium”}
info: Console LogLevel: debug
info: → POST /wd/hub/session {“desiredCapabilities”:{“app”:“E:\ZAppium\APK_Folder\net.tecnotopia.SimpleCalculator.apk”,“platformName”:“Android”,“deviceName”:“emulatar-5554”,“appActivity”:“net.tecnotopia.SimpleCalculator.MainActivity”,“appPackage”:“net.tecnotopia.SimpleCalculator”}}
info: Client User-Agent string: Apache-HttpClient/4.5.1 (Java/1.7.0_79)
info: [debug] Using local app from desired caps: E:\ZAppium\APK_Folder\net.tecnotopia.SimpleCalculator.apk
info: [debug] Creating new appium session b360e3c0-1680-4508-845c-c81042d7d26f
info: Starting android appium
info: [debug] Getting Java version
info: Java version is: 1.7.0_79
info: [debug] Checking whether adb is present
error: Unhandled error: Error: ENOENT, no such file or directory ‘E:\ZAppium\android-sdk_r24.2-windows\build-tools’
at Object.fs.readdirSync (fs.js:654:18)
at exports.getDirectories (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\appium-adb\lib\helpers.js:100:18)
at [object Object].ADB.checkSdkBinaryPresent (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\appium-adb\lib\adb.js:97:25)
at [object Object].ADB.checkAdbPresent (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\appium-adb\lib\adb.js:134:8)
at Function.ADB.createADB (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\appium-adb\lib\adb.js:73:7)
at [object Object].androidCommon.initAdb (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:1083:9)
at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:607:21
at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:246:17
at iterate (C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:146:13)
at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:157:25
at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:248:21
at C:\Program Files (x86)\Appium\node_modules\appium\node_modules\async\lib\async.js:612:34
at [object Object]. (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:1077:12)
at [object Object]. (C:\Program Files (x86)\Appium\node_modules\appium\lib\devices\android\android-common.js:1064:12)
at ChildProcess.exithandler (child_process.js:635:7)
at ChildProcess.EventEmitter.emit (events.js:98:17)
at maybeClose (child_process.js:743:16)
at Socket. (child_process.js:956:11)
at Socket.EventEmitter.emit (events.js:95:17)
at Pipe.close (net.js:465:12) context: [POST /wd/hub/session {“desiredCapabilities”:{“app”:“E:\ZAppium\APK_Folder\net.tecnotopia.SimpleCalculator.apk”,“platformName”:“Android”,“deviceName”:“emulatar-5554”,“appActivity”:"net.tecnotopia.SimpleCalculator.MainAc]

Please suggest what to do…!

If you look at the error message carefully you would notice the issue.
“Unhandled error: Error: ENOENT, no such file or directory ‘E:\ZAppium\android-sdk_r24.2-windows\build-tools’”

Try install node js manually

It’s telling you that Android SDK is not installed in the directory you’ve specified. Correct the path & you should be up and running.