Import an existing project | Qt Creator Documentation

- Qt Creator Documentation
- Import an existing project
- Qt Creator 19.0.0

Develop Qt for Python applications ◦ Select the build system

# Import an existing project

Import existing projects that do not use CMake, qmake, or one of the other directly supported build tools to use Qt Creator as a code editor and to fully control the steps and commands for building the project. To change the way the project is built, change the `make` command in the Projects mode under Build Settings.

With the following files, you can specify which files belong to your project and which include directories or defines to pass to your compiler: `.files`, `.includes`, and `.config`.

To import an existing generic project:

1. Select File > New Project > Import Project > Import Existing Project.
2. In Import Existing Project, enter the project name and select the location of the project file you want to import.

   Qt Creator automatically generates the following files in the project directory and shows them in the Projects view:

   - `.files`
   - `.includes`
   - `.config`
   - `.creator`
   - `.cflags`
   - `.cxxflags`

The `.creator` file is considered the project file, so you need to open it when you want to open the project later.

## Specify files

For a generic project, you have to manually specify which files belong to your project in the `.files` file. When you import a generic project, Qt Creator adds any files it recognizes to your project.

To add or remove files, edit the `.files` file in Qt Creator. Qt Creator updates the contents of Projects when you save the `.files` file. Or, use the context menu in Projects to add and remove files or directories.

### Use a script

If you frequently need to update the `.files` file, use a script. If the file is modified externally, you have to close and reopen the project for the changes to take effect.

To update the `.files` file in the Git repository, use the following script:

     git ls-files "*.cpp" "*.h" > MyProject.files

### Precompiled headers

To use precompiled headers in a generic project, add the `pch` tag after a file path in the `.files` file, separated by the pipe character (|). For example:

     src/pch.h|pch

## Specify include paths and framework paths

Specify include paths in the `.includes` file, one include path per line. The paths can be either absolute or relative to the `.includes` file.

Lines starting with `-F` are interpreted as framework paths.

## Specify defines

Specify defines in the `.config` file. It is a regular C++ file, prepended to all your source files when they are parsed. Only use the `.config` file to add lines as in the example below:

     #define NAME value

## Forward flags to Clang code model

The `.cxxflags` and `.cflags` files have command-line flags for the Clang code model on a single line.

For example, add the `-std=c++11` line to set the language version for parsing as C++11.

## Provide deployment information

To run an application on a remote Linux device, you first need to deploy your executable and possibly other files. Qt Creator does that for you automatically if you enter the necessary information. This works the same way as explained for CMake in Deploy applications to remote Linux devices, except that you also need to include your application binary in the list.

## Create a run configuration

Qt Creator cannot automatically determine which executable to run, so you must set the executable in Projects > Run Settings > Add > Custom Executable.

See also Specify a custom executable to run, Use project wizards, and Building and running projects.

Develop Qt for Python applications ◦ Select the build system