Update ut 10.3, The variable with the specified name is already defined, how to fix it?

Question

1C

UT 10.3.62.2
Platform 8.3.17.1091
on support, upgrade to 10.3.64.4, also from 10.3.64.1
after saving and launching, UT already gives an error
in the general module, tried to comment out did not help, in which direction to dig?

{NormalApplicationModule(56,7)}: Variable with specified name is already defined (SearchDirection)
Vari <<?>>SearchDirection Export;