Shader compiler errors on UE4

[g-exp]

Have been trying for packaging projects on UE4.27, but encountered 2 shader compiler errors like ../AMD/FSR2/Source/ffx-fsr2-api/shaders/ffx_common_types.h(125): Shader FFSR2AccumulateCS, Permutation 26, VF None: error: Illegal use of reserved word 'typedef' error: syntax error, unexpected ERROR_TOK, expecting $end Platform is for android vulkan, any idea for the solution? BTW, any other support for android available