---
title: Installation and Startup Problems
description: "**Issue: The application will not install or behaves unpredictably.** - **Solution**: Confirm that your system meets the minimum requirements. The application requires **Windows 10 or newer**, **macOS 10.14 or newer**, or a mainstream Linux distribution. You must also use a…"
url: "https://erroranalyzer.com/docs/installation-and-startup-problems/"
updated: "2025-09-10"
category: Troubleshooting
---

# Installation and Startup Problems

**Issue: The application will not install or behaves unpredictably.**

- **Solution**: Confirm that your system meets the minimum requirements. The application requires **Windows 10 or newer**, **macOS 10.14 or newer**, or a mainstream Linux distribution. You must also use a modern web browser like **Google Chrome, Mozilla Firefox, or Microsoft Edge**, as older browsers like Internet Explorer are not supported.

**Issue: The manual installation (from source code) fails.**

- **Solution**: For a manual installation, your system must have **Python 3.8 or newer**. Before running the application, ensure you have created and activated the virtual environment (your terminal prompt should start with `(venv)`) and installed all required libraries by running `pip install -r requirements.txt` in the project folder.

**Issue: The application was working, but now the browser page is blank or won't connect.**

- **Solution**: The application runs from a local server that is launched in a terminal or command prompt window. If you close that window, the server stops. To fix this, simply restart the application from the desktop shortcut or by running `python main.py` again.