Shaders throwing warnings in console

[Client thread/WARN]: Could not find uniform named InSize in the specified shader program.
[Client thread/WARN]: Could not find uniform named Time in the specified shader program.
[Client thread/WARN]: Could not find uniform named OutSize in the specified shader program.
[Client thread/WARN]: Shader ntsc_decodecould not find sampler named BaseSampler in the specified shader program.
[Client thread/WARN]: Could not find uniform named LumaRamp in the specified shader program.