ERROR: 0:11: 'atan2' : no matching overloaded function found ERROR: 1 compilation errors. No code generated. [W] unknown:0 - QOpenGLShader::compile(Fragment): ERROR: 0:11: 'atan2' : no matching overloaded function found ERROR: 1 compilation errors. No code generated. [W] unknown:0 - *** Problematic Fragment shader source code *** [W] unknown:0 - #ifndef GL_FRAGMENT_PRECISION_HIGH #define highp mediump #endif #line 1 uniform lowp float qt_Opacity; uniform highp float angleBase; uniform highp float angle; varying highp vec2 coord; void main() { gl_FragColor = vec4(0.0,0.0,0.0,0.0); highp vec2 d=2.0*coord-vec2(1.0,1.0); highp float r=length(d); if (0.66<=r && r<=0.92) { highp float a=atan2(d.x,-d.y); if (angleBase<=a && a<=angle) { highp float p=(a-angleBase)/(angle-angleBase); gl_FragColor = vec4(0.9,0.2,0.1,p) * qt_Opacity; } } } [W] unknown:0 - *** [W] unknown:0 - QQuickCustomMaterialShader: Shader compilation failed: [W] unknown:0 - "ERROR: 0:11: 'atan2' : no matching overloaded function found \nERROR: 1 compilation errors. No code generated.\n\n"