'Unknown': sonar.projectKey

Hi there, I’m using SonarQube Developer Edition 10.2 and deployed it locally with docker.
I tried to integrated it with Github Action, I had everything setup, including create sonar-project.properties in my repository root path, and paste my projectKey in it, however I got this error when I push my code:

Run SonarSource/sonarqube-scan-action@v2.0.1
/usr/bin/docker run --name b6964013b78db417ea5b99d53aa2349e4_6bd412 --label 94351b --workdir /github/workspace --rm -e "SONAR_TOKEN" -e "SONAR_HOST_URL" -e "INPUT_PROJECTBASEDIR" -e "INPUT_ARGS" -e "HOME" -e "GITHUB_JOB" -e "GITHUB_REF" -e "GITHUB_SHA" -e "GITHUB_REPOSITORY" -e "GITHUB_REPOSITORY_OWNER" -e "GITHUB_REPOSITORY_OWNER_ID" -e "GITHUB_RUN_ID" -e "GITHUB_RUN_NUMBER" -e "GITHUB_RETENTION_DAYS" -e "GITHUB_RUN_ATTEMPT" -e "GITHUB_REPOSITORY_ID" -e "GITHUB_ACTOR_ID" -e "GITHUB_ACTOR" -e "GITHUB_TRIGGERING_ACTOR" -e "GITHUB_WORKFLOW" -e "GITHUB_HEAD_REF" -e "GITHUB_BASE_REF" -e "GITHUB_EVENT_NAME" -e "GITHUB_SERVER_URL" -e "GITHUB_API_URL" -e "GITHUB_GRAPHQL_URL" -e "GITHUB_REF_NAME" -e "GITHUB_REF_PROTECTED" -e "GITHUB_REF_TYPE" -e "GITHUB_WORKFLOW_REF" -e "GITHUB_WORKFLOW_SHA" -e "GITHUB_WORKSPACE" -e "GITHUB_ACTION" -e "GITHUB_EVENT_PATH" -e "GITHUB_ACTION_REPOSITORY" -e "GITHUB_ACTION_REF" -e "GITHUB_PATH" -e "GITHUB_ENV" -e "GITHUB_STEP_SUMMARY" -e "GITHUB_STATE" -e "GITHUB_OUTPUT" -e "RUNNER_OS" -e "RUNNER_ARCH" -e "RUNNER_NAME" -e "RUNNER_ENVIRONMENT" -e "RUNNER_TOOL_CACHE" -e "RUNNER_TEMP" -e "RUNNER_WORKSPACE" -e "ACTIONS_RUNTIME_URL" -e "ACTIONS_RUNTIME_TOKEN" -e "ACTIONS_CACHE_URL" -e GITHUB_ACTIONS=true -e CI=true --entrypoint "/entrypoint.sh" -v "/var/run/docker.sock":"/var/run/docker.sock" -v "/home/runner/work/_temp/_github_home":"/github/home" -v "/home/runner/work/_temp/_github_workflow":"/github/workflow" -v "/home/runner/work/_temp/_runner_file_commands":"/github/file_commands" -v "/home/runner/work/my-portfolio/my-portfolio":"/github/workspace" 94351b:6964013b78db417ea5b99d53aa2349e4
INFO: Scanner configuration file: /opt/sonar-scanner/conf/sonar-scanner.properties
INFO: Project root configuration file: NONE
INFO: SonarScanner
INFO: Java 17.0.8 Alpine (64-bit)
INFO: Linux 6.2.0-1012-azure amd64
INFO: User cache: /opt/sonar-scanner/.sonar/cache
INFO: Analyzing on SonarQube server
INFO: Default locale: "en_US", source code encoding: "UTF-8" (analysis is platform dependent)
INFO: Load global settings
INFO: Load global settings (done) | time=232ms
INFO: Server id: 147B411E-AYrclvViyDoZ3Ah6aNLv
INFO: User cache: /opt/sonar-scanner/.sonar/cache
INFO: Load/download plugins
INFO: Load plugins index
INFO: Load plugins index (done) | time=109ms
INFO: Load/download plugins (done) | time=44885ms
INFO: Loaded core extensions: developer-scanner
INFO: Process project properties
INFO: ------------------------------------------------------------------------
INFO: ------------------------------------------------------------------------
INFO: Total time: 54.634s
INFO: Final Memory: 16M/60M
INFO: ------------------------------------------------------------------------
ERROR: Error during SonarScanner execution
ERROR: You must define the following mandatory properties for 'Unknown': sonar.projectKey
ERROR: Re-run SonarScanner using the -X switch to enable full debug logging.

I tried to add args in my github action yml file, and it worked. How could it happen?
Thank you in advance.


Welcome to the community!

The docs are pretty clear that you need to pass your project key like this:



Thank you for your response. However, I’m running SonarScanner with Github Action, that’s why I followed the doc in marketplace to put my projectKey in sonar-project.properties


It looks like the GH Action assumes you’re not using the Docker scanner.