Unable to Build Server Module

[kairon007]

cd backend
then tried to execute
docker build -t memzy .
Getting the following stacktrace

`0.997 Daemon will be stopped at the end of the build
14.09
14.09 > Configure project :
14.09 e: /home/gradle/src/build.gradle.kts:5:11: Unresolved reference: libs
14.09
14.09 FAILURE: Build failed with an exception.
14.09
14.09 * Where:
14.09 Build file '/home/gradle/src/build.gradle.kts' line: 5
14.09
14.09 * What went wrong:
14.09 Script compilation error:
14.09
14.09 Line 5: alias(libs.plugins.shadow)
14.09 ^ Unresolved reference: libs
14.09
14.09 1 error
14.09
14.09 * Try:
14.09 > Run with --stacktrace option to get the stack trace.
14.09 > Run with --info or --debug option to get more log output.
14.09 > Run with --scan to get full insights.
14.09
14.09 * Get more help at https://help.gradle.org
14.09
14.09 BUILD FAILED in 13s

Dockerfile:4

2 | COPY --chown=gradle:gradle . /home/gradle/src
3 | WORKDIR /home/gradle/src
4 | >>> RUN gradle shadowJar --no-daemon
5 |
6 | FROM openjdk:11

ERROR: failed to solve: process "/bin/sh -c gradle shadowJar --no-daemon" did not complete successfully: exit code: 1
`