wont build

[RDS5]

trying to compile lineageos 19.1 for klte, it wont build.
when i try doing repo sync it cant sync "android_hardware_sony_timekeep" because it doesnt have a lineageos 19.1 branch, so i changed the xml file to 18.1

<?xml version="1.0" encoding="UTF-8"?>
 <manifest>
        
 <remote  name="khalvat"
    fetch="https://github.com/Khalvat-M"
    revision="12.1" />

 <remote  name="linos"
    fetch="https://github.com/LineageOS"
    revision="lineage-19.1" />

    <!--LineageOS -->
    <project name="android_hardware_samsung" path="hardware/samsung" remote="linos" />
    <project name="android_hardware_sony_timekeep" path="hardware/sony/timekeep" remote="linos" revision="lineage-18.1"/>
        
    <!--Device -->
    <project name="device_samsung_klte" path="device/samsung/klte" remote="khalvat" />
    <project name="device_samsung_msm8974-common" path="device/samsung/msm8974-common" remote="khalvat" />
           
    <!--Kernel -->
    <project name="kernel_samsung_msm8974" path="kernel/samsung/msm8974" remote="khalvat" />
    
    <!--Vendor -->
    <project name="vendor_samsung" path="vendor/samsung" remote="khalvat" />
                  
 </manifest>

the error is when i try running breakfast, it tells me

i renamed some files but then it would fail to build some targets when i ran brunch klte.
im not sure if theres a problem with this repo or if im just outright stupid..
im quite new to all this stuff so please go easy on me.