Local workspace file angular.json could not be found

[DannyCare]

Trying to create the post class with the following command:

ng g class /posts/post

Outputs the following error:

Error: Local workspace file ('angular.json') could not be found.
    at WorkspaceLoader._getProjectWorkspaceFilePath (/usr/local/lib/node_modules/@angular/cli/models/workspace-loader.js:44:19)
    at WorkspaceLoader.loadWorkspace (/usr/local/lib/node_modules/@angular/cli/models/workspace-loader.js:31:21)
    at GenerateCommand._loadWorkspace (/usr/local/lib/node_modules/@angular/cli/models/schematic-command.js:292:29)
    at GenerateCommand.<anonymous> (/usr/local/lib/node_modules/@angular/cli/models/schematic-command.js:57:18)
    at Generator.next (<anonymous>)
    at /usr/local/lib/node_modules/@angular/cli/models/schematic-command.js:14:71
    at new Promise (<anonymous>)
    at __awaiter (/usr/local/lib/node_modules/@angular/cli/models/schematic-command.js:10:12)
    at GenerateCommand.initialize (/usr/local/lib/node_modules/@angular/cli/models/schematic-command.js:56:16)
    at GenerateCommand.<anonymous> (/usr/local/lib/node_modules/@angular/cli/commands/generate.js:41:40)

All steps followed, npm installed and the project compiles but just doesn't work with the command.