QOpenGLShader - version directive must be first statement and may not be repeated - c++

Question

I'am building an OpenGL-application using Qt 5.11.2. When adding a tessellation shader the following error occurs:
QOpenGLShader::compile(Tessellation Control): 0(2) : error C0204: version directive must be first statement and may not be repeated
*** Problematic Tessellation Control shader source code ***
#define lowp
#define mediump
#define highp
#line 1
´╗┐#version 400
#line 1
layout (vertices = 4) out;
I'm working on Windows 10 with Geforce GTX 1050/PCIe/SSE2 GPU.
I've found similar reports, but none of the answers worked for me: unable to compile GLSL shaders on Qt 5.3 after Nvidia driver update
Serious rendering issues with OpenGL 4.1 and Qt 5
The shader looks like this:
#version 400
layout (vertices = 4) out;
uniform float animationFrame;
in vec3 v_vertex[];
out vec3 tc_vertex[];
void main()
{...}
To add the shader I use the following code:
addShader(QOpenGLShader::Vertex, "data/cube.vert", *m_program);
addShader(QOpenGLShader::Fragment, "data/cube.frag", *m_program);
addShader(QOpenGLShader::TessellationControl, "data/cube.tcs", *m_program);
addShader(QOpenGLShader::TessellationEvaluation, "data/cube.tes", *m_program);
addShader(QOpenGLShader::Geometry, "data/cube.geom", *m_program);
Obviously the first lines inserted by Qt produce the error. Any ideas how to fix this problem?

Answer 1

I have the same problem, my errors shows like this:
QOpenGLShader::compile(Fragment): 0(2) : error C0204: version directive must be first statement and may not be repeated
*** Problematic Fragment shader source code ***
#ifdef GL_KHR_blend_equation_advanced
#extension GL_ARB_fragment_coord_conventions : enable
#extension GL_KHR_blend_equation_advanced : enable
#endif
#define lowp
#define mediump
#define highp
#line 1
???#version 330 core
out vec4 FragColor;
void main(void)
{
FragColor = vec4(1.0f, 0.5f, 0.2f, 1.0f);
}
***
as you can see, there are ??? in the messages, while you have ´╗┐
when I changed from "utf-8 with BOM" to "utf-8", it works~

Answer 2

I have the error like this:
???#version 330 core
I use visual code to change the file encoding from "utf-8 with BOM" to "utf-8". Then it works.

Answer 3

I guess the answer is "version directive must be first statement and may not be repeated"
So, put your version directive to the first line - before all defines and the same.
Just checked it - that is it.
When I put directive "#version 330 core" in the fourth line of code - the same error "version directive must be first statement and may not be repeated" occured;
So the right way is to put this directive to the first line as it should be:
1 #version 330 core
2 in highp vec3 vert;
3 in highp vec3 vertNormal;
Where 1,2,3 - line's numbers.