Error during SonarQube Scanner execution javax.json.stream.JsonParsingException: Invalid token=EOF

SonarQube server 8.9.9
SonarQube Scanner 4.0.0.1744

Sonar-scanner fails with the following error. See attached file with full output from debug mode.

15:12:00.529 ERROR: Error during SonarQube Scanner execution
javax.json.stream.JsonParsingException: Invalid token=EOF at (line no=2, column no=4, offset=5). Expected tokens are: [STRING, CURLYCLOSE]

Command being run:
sonar-scanner -X -Dsonar.host.url=https://sonarserver.com -Dproject.settings=/home/jenkins/workspace/MYPROJECT/sonar-project.properties -Dsonar.scm.disabled=true -Dsonar.projectName=il-dealmarketing-service -Dsonar.projectVersion=0.0.1 -Dsonar.projectKey=il-dealmarketing-service -Dsonar.scm.exclusions.disabled=true -Dsonar.projectBaseDir=/home/jenkins/workspaceMYPROJECT

Please advise.

I was able to solve this issue, problem was due to sonar.sources directory.