getting 'location' : too large for fragment output error while using glslang

Iam using glslang SDK in my code to compile shader programs online, however i get the following errors for my fragment shader:

GLSL Parsing Failed for: Text.frag ERROR: 0:6: 'location' : too large for fragment output ERROR: 1 compilation errors. No code generated.

GLSL Linking Failed for: Text.frag ERROR: 0:6: 'location' : too large for fragment output ERROR: 1 compilation errors. No code generated.

Assertion failed: node->getOp(), file C:\projects\glslang\SPIRV\GlslangToSpv.cpp, line 2412

my vertex shader:

#version 450
#extension GL_ARB_separate_shader_objects : enable

layout(location = 0) out vec3 fragColor;

vec2 positions[3] = vec2[](
    vec2(0.0, -0.5),
    vec2(0.5, 0.5),
    vec2(-0.5, 0.5)
);

vec3 colors[3] = vec3[](
    vec3(1.0, 0.0, 0.0),
    vec3(0.0, 1.0, 0.0),
    vec3(0.0, 0.0, 1.0)
);

void main() {
    gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
    fragColor = colors[gl_VertexIndex];
}

My fragment shader

#version 450
#extension GL_ARB_separate_shader_objects : enable

layout(location = 0) in vec3 fragColor;

layout(location = 0) out vec4 outColor;

void main() {
    outColor = vec4(fragColor, 1.0);
}