How do I fix: 🛑 Root Causes of the Error?

The error is likely caused by incorrect usage of AngularJS directive syntax in your Scala Play application.Check that you're using the correct AngularJS directives and that they are properly configured in your Scala Play project.

How do I fix: Checking Controller Definition?

Step 1: Verify that your controller MainCtrl is correctly defined in the Scala Play application.Step 2: Check that the controller has a constructor method that accepts the required parameters.Step 3: Ensure that the controller's methods are properly injected with the necessary dependencies.

Software⏱️ 3 min read📅 2026-06-04

How to Fix: Error: Argument is not a function, got undefined

Q: Step-by-Step Verified Fixes Understanding AngularJS Directive Syntax?

Step 1: Verify that you've included the necessary AngularJS library files in your HTML file.Step 2: Check that you're using the correct syntax for AngularJS directives, such as {{ }} or ng-repeat.Step 3: Ensure that your controller is properly defined and injected with the necessary dependencies.

Learn how to fix: Error: Argument is not a function, got undefined.

Quick Answer: Try checking your system settings or restarting.

📋 Table of Contents

🛑 Root Causes of the Error
🛠️ Step-by-Step Verified Fixes
🎯 Final Words

The error 'Argument is not a function, got undefined' in AngularJS with Scala Play occurs when there's a mismatch between the expected and actual data types of an argument.

This issue typically arises when trying to call a function as if it were an object or vice versa. In this case, the controller MainCtrl seems correct, but the problem lies elsewhere.

🛑 Root Causes of the Error

The error is likely caused by incorrect usage of AngularJS directive syntax in your Scala Play application.
Check that you're using the correct AngularJS directives and that they are properly configured in your Scala Play project.

🛠️ Step-by-Step Verified Fixes

Understanding AngularJS Directive Syntax

Step 1: Verify that you've included the necessary AngularJS library files in your HTML file.
Step 2: Check that you're using the correct syntax for AngularJS directives, such as {{ }} or ng-repeat.
Step 3: Ensure that your controller is properly defined and injected with the necessary dependencies.

Checking Controller Definition

Step 1: Verify that your controller MainCtrl is correctly defined in the Scala Play application.
Step 2: Check that the controller has a constructor method that accepts the required parameters.
Step 3: Ensure that the controller's methods are properly injected with the necessary dependencies.

🎯 Final Words

To resolve this issue, ensure that you're using AngularJS directives and controllers correctly in your Scala Play application. Verify that your HTML file includes the necessary library files and that your controller is properly defined.

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