Fix for Gradle Error: “Module Not Specified” in Android Studio

Running into the “Module not specified” error in Android Studio? You’re not alone — this is a common issue, especially when importing or building projects for the first time. Thankfully, it’s easy to fix once you know where to look. Follow these steps and get your project building again in minutes.

Step 1: Understand the Error

The “Module not specified” error usually appears when:

You try to run or debug your app but Android Studio doesn’t know which module to execute.
Your project’s run configuration is missing or pointing to a module that doesn’t exist anymore.
You’ve just imported a project or renamed a module and things haven’t synced properly.

Step 2: Sync the Project with Gradle Files

This should be your first move:

Click File in the top menu
Select Sync Project with Gradle Files

This forces Android Studio to recheck your build.gradle files and re-link any modules. If the error was caused by a temporary sync issue, this might fix it on the spot.

Step 3: Check Your Run Configuration

In the top-right corner of Android Studio, click the dropdown next to the green Run/Debug button
Choose Edit Configurations
Under Application, select the configuration giving the error
Look for the Module dropdown and make sure it points to the correct module (usually app)
Click Apply then OK

If no module is selected, Android Studio won’t know what to build or run.

Step 4: Invalidate Caches and Restart

Still stuck? Clear things out:

Click File → Invalidate Caches / Restart
Choose Invalidate and Restart

This clears any corrupted IDE state that might be blocking the module configuration from loading properly.

Step 5: Rebuild the Project

After restarting:

Go to Build → Rebuild Project
Watch the build output for any other errors that may pop up

This ensures all dependencies are correctly resolved and the build process is clean.

Step 6: Check Your Project Structure

If the error persists:

Go to File → Project Structure
Under Modules, make sure your app module exists and is properly configured
If needed, click + Add Module to re-add one manually

Sometimes, the project imports fine, but the app module is missing entirely.

Example: Correct Run Configuration in Android Studio

To double-check your run config:

Go to Run → Edit Configurations
Under the Application section, select your app’s configuration (or click + to add a new one)
Make sure these fields are set:

Field	Example Value
Name	MyApp
Module	app
Activity	com.example.myapp.MainActivity
Launch	Default Activity
Deployment Target	Show Device Chooser or USB Device

Click Apply → OK

If Module is blank or incorrect, that’s the most common trigger for the “Module not specified” error.

You’re Good to Go

Once your module is properly specified and your project syncs cleanly, the error should disappear. Hit the green Run button and your app should build like normal.

Bonus Tip

If this issue keeps coming back, save a working copy of your .idea and .gradle files as backup. Sometimes, starting from a clean import and restoring these configs is faster than debugging every time.

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Eric Sandler

Chief Writer at WiFi Planet

Eric Sandler is a veteran US tech writer with over 25 years of experience covering the latest advancements in the world of technology. From groundbreaking innovations to in-depth reviews, Eric has built a reputation for delivering insightful, reliable content. His work spans across a variety of tech topics, including smartphones, gadgets, AI, and more, making him a trusted voice in the industry.