Okay, here are some titles that would fit the content of the article: * How to Fix the \"-lGL: not found\" Error in Qt * Qt Compilation Error: \"-lGL: not found\" - What to Do * Troubleshooting \"-lGL: not found\" Error

Resolving "-lGL: not found" Error in Qt

When trying to compile a newly created project in QtCreator, some users may encounter the error "-lGL: not found". This error usually occurs because the required dependencies are not installed.

To solve this problem, follow the steps below:

This package contains development libraries necessary to support OpenGL in Qt projects. On Ubuntu, you can install it using the following command: , restart QtCreator for the changes to take effect.
1. Recompile the project:
   
The "-lGL: not found" error should be resolved by installing the development libraries. Now you can recompile the project.

sudo apt install libgl1-mesa-dev

After completing these steps, the project will compile without errors.

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