I have the same error message on my 5700 XT.

Enumerating OpenCL devices, please wait...

GPU0: AMD Radeon RX 5700 XT [gfx1010] [8176 MB][CU: 20][I: 71.0][W: 16][T: 2][F: 8][BUS: 14]

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SRBMiner Cryptonight AMD GPU miner 1.9.3
DevFee ~0.85%

Press 's' to display stats
Press 'h' to display hashrate
Press 'r' to reload pools
Press 'p' to switch to the next pool
Press 'o' to switch to the previous pool
Press 0-9 to disable/enable GPU 0-9, shift+0-9 for GPU 10-19
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Algorithm               : Cryptonight V4 (CN/R)
Algo switching          : disabled
Coin forking            : disabled
Gpu watchdog            : enabled [normal mode]
Startup monitor         : enabled
Tweaking                : disabled


[2019-07-23 23:28:23] Pools defined -> 2
[2019-07-23 23:28:23] Please run miner as administrator to enable tweaking
[2019-07-23 23:28:24] Compiling [normalv4] kernel for DEVICE BUS_ID[14]
error: :0:0: in function cn0 void (<4 x i32> addrspace(1)*, i64 addrspace(1)*, i32, i64 addrspace(4)*): unsupported indirect call to function doKeccak

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