When using SonarScanner, following the suggested manual recipe for classic .NET and MSBuild - so all required properties and variable are passed to the CLI tool - I find the following error at the bottom lines:
ERROR: Project not found. Please check the 'sonar.projectKey' and 'sonar.organization' properties, the 'SONAR_TOKEN' environment variable, or contact the project administrator.
What's wrong? How to resolve this?