compiler does not catch empty compilerHost

[ChristophAtAdlos]

The error when running karma-typescript:
Fatal error: Cannot read property 'getNewLine' of undefined

In compiler.js at outputDiagnostics(), the host is an empty Object.
At setupRecompile(), the host was created with the following output from getTsconfig().options:

{
  "emitDecoratorMetadata": true,
  "experimentalDecorators": true,
  "jsx" :2,
  "module": 1,
  "sourceMap": true,
  "target": 1,
  "noImplicitAny": false,
  "configFilePath": "",
  "lib": ["lib.es2015.d.ts","lib.dom.d.ts"],
  "suppressOutputPathCheck": true
}

this results in an empty Object.
A specific error message would be helpfully.

In karma config, settings are target: "ES5" and module: "commonjs".
From where is the configFilePath collected?

[erikbarke]

Hey @ChristophAtAdlos, could you attach a file with the complete debug log output here please?

[ChristophAtAdlos]

You will find the debug log at Gist.

[ChristophAtAdlos]

#19 helped to go further (declare tsconfig.json)
Added tsconfig: "./tsconfig-testing.json" in karmaTypescriptConfig, now it compiles. A meaningful error message in case of empty files array would help to resolve faster.

Now it hangs on Error: Cannot find module 'inherits' from '.'.

[ChristophAtAdlos]

In the meantime, I got karma-typescript running. I updated npm itself to latest version and rebuilt node_modules from scratch. Tho only thing I had to make is apply the patch from #129 .

[erikbarke]

I'm gonna have to chalk this one up as a botched installation issue, I tried using the compiler options you listed and that doesn't result in an empty host. Also, the debug log you provided has a quite specific Typescript error message about not finding any files using the include paths, I'm not sure I can improve anything here.