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# 8. Launcher

The Launcher application provides easy access to all of the tools, documentation, configurations, and examples bundled with Vortex OpenSplice.

## 8.1. The Launcher utility

The Launcher utility

## 8.2. Starting the Launcher

The Launcher’s content is populated based on the environment variables available at the time it is started. If the command line is used then the correct release script must be sourced from the Vortex OpenSplice home directory before starting the Launcher.

Unix and Linux

Source the `release.com` file from the shell command line to set up the Vortex OpenSplice environment.

To start Launcher, enter the following command in the shell:

    ospllauncher

Windows

Open an Vortex OpenSplice Command Prompt and enter the following command:

    ospllauncher.bat

You can also start Launcher from the Windows Start Menu, which will set the environment variables of the Vortex OpenSplice instance appropriately.

## 8.3. Stopping the Launcher

Unix and Linux

In the terminal where the `ospllauncher` file was executed, enter CTRL+C, or close the Launcher application windows using the X button.

Windows

Close the Launcher application windows using the X button.

## 8.4. Troubleshooting Improper Startup

Launcher starts up with incorrect, missing, or no content at all

Check the following:

  On Linux, ensure that the release.com was called prior to starting the Launcher.
  On Windows, ensure you use the Vortex OpenSplice Command Prompt , or you can use the Windows command prompt if you call the release.bat script prior to starting the Launcher.

If previous versions of Vortex OpenSplice were used with Launcher, verify that `USER_HOME.olauncherprefs` does not contain any overridden values pointing to non-existent directories or files.

Launcher starts up but cannot compile or clean example code

Ensure that you have permissions to modify the permissions of `OSPL_HOME/examples` and any user-specified configuration directories, or start Launcher with elevated privileges.

Launcher starts up but cannot save edited configuration files opened in Configurator that has been started from Launcher

Ensure taht you have modify permissions in the `OSPL_HOME/etc/config/` directory, or start Launcher with elevated privileges.

Launcher starts up but cannot write log files

Ensure that you have modify permissions in the `OSPL_HOME/` and its subdirectories, start Launcher with elevated privileges, or start `ospllauncher` from a non-write-protected directory.

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