我有一个Angular 8项目，我跑了

ng add @angular/bazel

在上面（如docs中指出的）。但是然后我得到这个错误：

错误

Unable to find compatible package.  Using 'latest'.
Installing packages for tooling via yarn.
Installed packages for tooling via yarn.
An unhandled exception occurred: Schematic "ng-add" not found in collection "@angular/bazel".
See "/tmp/ng-WJmXSk/angular-errors.log" for further details.

日志文件

[error] Error: Schematic "ng-add" not found in collection "@angular/bazel".
    at SchematicEngine.createSchematic (/home/flolu/Desktop/cents-ideas/services/frontend/node_modules/@angular/cli/node_modules/@angular-devkit/schematics/src/engine/engine.js:232:23)
    at CollectionImpl.createSchematic (/home/flolu/Desktop/cents-ideas/services/frontend/node_modules/@angular/cli/node_modules/@angular-devkit/schematics/src/engine/engine.js:69:29)
    at AddCommand.getSchematic (/home/flolu/Desktop/cents-ideas/services/frontend/node_modules/@angular/cli/models/schematic-command.js:135:27)
    at AddCommand.runSchematic (/home/flolu/Desktop/cents-ideas/services/frontend/node_modules/@angular/cli/models/schematic-command.js:291:32)
    at AddCommand.executeSchematic (/home/flolu/Desktop/cents-ideas/services/frontend/node_modules/@angular/cli/commands/add-impl.js:148:31)
    at AddCommand.run (/home/flolu/Desktop/cents-ideas/services/frontend/node_modules/@angular/cli/commands/add-impl.js:45:25)
    at AddCommand.validateAndRun (/home/flolu/Desktop/cents-ideas/services/frontend/node_modules/@angular/cli/models/command.js:134:39)
    at process._tickCallback (internal/process/next_tick.js:68:7)
    at Function.Module.runMain (internal/modules/cjs/loader.js:745:11)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:743:3)

您可以通过运行自己尝试

ng add @angular/bazel

在这个项目中。（路径：/services/frontend）