Angular Error: Schema validation failed with the following errors: Data path "" should NOT have additional properties(project)
Solutions: When I was getting version error issues, the Following command worked for me: First, run: npm update Second run: ng update Third run: (It will update all the mismatching packages) ng update --all --force OR Run this command which will Perform a basic update to the current stable release of the core framework and CLI by running the following command. ng update @angular/cli@^<major_version> @angular/core@^<major_version>