Cannot start the GUI interface #17942

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Hi @wangnan789,

Thanks for the question, and sorry for the slightly delayed reply.

I assume you are on Linux? This is expected Linux behavior rather than a Theia problem. Most Linux file managers deliberately do not execute a binary when you double-click it (for security), so nothing happens, while running it from the terminal works because the shell executes it directly.

The three files you mention are the internal parts of an AppImage: AppRun is the AppImage entry point and theia-ide-electron-app.bin is the underlying Electron binary. They are not meant to be launched individually. To start the app by double-clicking, use the packaged .AppImage file from the official download page (https://theia-ide.org/#theiaidedownload), and make sure it has the execute permission set:

chmod +x Theia-IDE-*.AppImage

On first start, the AppImage will offer to integrate itself into your desktop (menu entry, icon, and double-click launch), so you can simply accept that prompt.

Hope that helps!