[BUG] 'disp_string' was not declared in this scope

[ellensp]

Did you test the latest bugfix-2.0.x code?

Yes, and the problem still exists.

Bug Description

When attempting to compile mks_robin_nano_v3 with extui/mks_ui you get the error

Marlin/src/lcd/extui/mks_ui/draw_error_message.cpp: In function 'void lv_draw_error_message(const char*)':
Marlin/src/lcd/extui/mks_ui/draw_error_message.cpp:42:12: error: 'disp_string' was not declared in this scope
   42 |   if (msg) disp_string((TFT_WIDTH - strlen(msg) * 16) / 2, 100, msg, 0xFFFF, 0x0000);

Bug Timeline

new

Expected behavior

It should compile

Actual behavior

Marlin/src/lcd/extui/mks_ui/draw_error_message.cpp:42 requires disp_string but disp_string is only created when
MKS_TEST is defined.

Steps to Reproduce

1. Use provided config
2. attempt to compile
3. note the error

Version of Marlin Firmware

latest bugfix

Electronics

BOARD_MKS_ROBIN_NANO_V3

Add-ons

MKS_TS35_V2_0

Additional information & file uploads

Configuration.zip

Related to issue: #21069

[github-actions]

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