Build dando erro de target não encontrado

docker compose build

WARN[0000] /root/aula_27_grafana/docker-compose.yaml: the attribute `version` is obsolete, it will be ignored, please remove it to avoid potential confusion
Compose can now delegate builds to bake for better performance.
To do so, set COMPOSE_BAKE=true.
[+] Building 0.7s (7/7) FINISHED docker:default
=> [app-forum-api internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 362B 0.0s
=> [app-forum-api internal] load metadata for docker.io/library/eclipse-temurin:8-jdk-alpine 0.5s
=> [app-forum-api internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [app-forum-api 1/3] FROM docker.io/library/eclipse-temurin:8-jdk-alpine@sha256:8c682b1926dabc805ad862e8fb5c16a40d855a95c979657cbc0edc1bc43f6779 0.0s
=> [app-forum-api internal] load build context 0.0s
=> => transferring context: 2B 0.0s
=> CACHED [app-forum-api 2/3] RUN addgroup -S spring && adduser -S spring -G spring 0.0s
=> ERROR [app-forum-api 3/3] COPY target/*jar app.jar 0.1s

[app-forum-api 3/3] COPY target/*jar app.jar:

failed to solve: lstat /target: no such file or directory