do not build jar

i'm run build-external.sh before run build-all.sh to error:

[INFO] Checking template classes for errors
[ERROR] Found 12 errors in your Template
[ERROR]
[ERROR] Method 'clone()Ljava/lang/Object;' in class 'net/minecraft/server/v1_12_R1/NBTBase' does not exist in template jar for version 1_12_R1
[ERROR] Location: net.minecraft.server.NBTBase java.lang.Object clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagDouble net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagString net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagInt net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagLong net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagFloat net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagIntArray net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagCompound net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagShort net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagByte net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagByteArray net.minecraft.server.NBTBase clone()
[ERROR]
[ERROR] The method lacks a @LOverride annotation
[ERROR] Location: net.minecraft.server.NBTTagList net.minecraft.server.NBTBase clone()
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 9.406 s
[INFO] Finished at: 2023-09-05T17:12:16+03:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal net.glowstone:linkstone-maven-plugin:1.0.0-SNAPSHOT:compile (default) on project linkstone-shim: Templates contain errors -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException