[Linphone-users] Linphone 4.0 on Windows: OpenGL error

[Felix Stella]

I installed Linphone 4.0 on my Windows desktop, but I get the following error when I try to start it:

"""

Failed to create OpenGL context for format QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::SwapBehavior(DoubleBuffer), swapInterval 1, profile  QSurfaceFormat::OpenGLContextProfile(NoProfile)) .

This is most likely caused by not having the necessary graphics drivers installed.

Install a driver providing OpenGL 2.0 or higher, or, if this is not possible, make sure the ANGLE Open GL ES 2.0 emulation libraries (libEGL.dll, libGLESv2.dll and d3dcompiler_*.dll) are available in the application executable's directory or in a location listed in PATH.

"""

I checked the "bin" folder of Linphone and I can see libEGL.dll, libGLESV2.dll, and D3Dcompiler_47.dll. So why is the error still happening?