ERROR: load project error(s): error unmarshalling into parser project: invalid configuration file: yaml: unmarshal errors:
  line 436: mapping key "<<" already defined at line 435
fetchedYamls/mongo-tools-common-4.2.yml is an invalid configuration

ERROR: load project error(s): error unmarshalling into parser project: invalid configuration file: yaml: unmarshal errors:
  line 578: mapping key "<<" already defined at line 577
fetchedYamls/mongo-tools-common.yml is an invalid configuration

ERROR: load project error(s): error unmarshalling into parser project: invalid configuration file: yaml: unmarshal errors:
  line 1514: mapping key "<<" already defined at line 1513
fetchedYamls/mongo-tools-v3.4.yml is an invalid configuration

ERROR: load project error(s): error unmarshalling into parser project: invalid configuration file: yaml: unmarshal errors:
  line 1671: mapping key "<<" already defined at line 1670
fetchedYamls/mongo-tools-v3.6.yml is an invalid configuration

ERROR: load project error(s): error unmarshalling into parser project: invalid configuration file: yaml: unmarshal errors:
  line 1696: mapping key "<<" already defined at line 1695
fetchedYamls/mongo-tools-v4.0.yml is an invalid configuration

ERROR: load project error(s): error unmarshalling into parser project: invalid configuration file: yaml: unmarshal errors:
  line 1797: mapping key "<<" already defined at line 1796
fetchedYamls/mongo-tools-v4.2.yml is an invalid configuration

ERROR: load project error(s): error unmarshalling into parser project: invalid configuration file: yaml: unmarshal errors:
  line 1602: mapping key "<<" already defined at line 1601
  line 1603: mapping key "<<" already defined at line 1601
  line 1604: mapping key "<<" already defined at line 1601
  line 1603: mapping key "<<" already defined at line 1602
  line 1604: mapping key "<<" already defined at line 1602
  line 1604: mapping key "<<" already defined at line 1603
fetchedYamls/mongo-tools.yml is an invalid configuration