Ionic 2 - Importing from Angular2

Hi all,

feeling a bit dumb dumb :smile:

I’ve created a new file under www/app/services/test-service.ts

I’m stuck at a very simple line:

import {Http, HTTP_PROVIDERS} from ‘angular2/http’;

Getting the following error:

cannot compile modules unless the ‘–module’ flag is provided

Any idea what is happening? Thanks folks!

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It’s probably a config error in your tsconfig.json, webpack.config.js, ionic.config.js or gulpfile.js, can you put a gist to them to be able to debug a bit?

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Hey thanks for the reply!

Playing around a bit found it it raises that error for each file that is not imported anywhere (an unused file).
Once I import it then code completion and type checking starts working.

Seems to be mainly an IDE bug.

Thanks again

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Soo are you using an IDE and using it to compile the code? i use the CLI to serve and compile and in some point in time i had this error, so it shouldn’t be an issue with the IDE.

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I had the same problem as him and in my case was the tsconfig.json.

There is a parameter called files like so:

“files”: [

or something like that. Well it was showing the whole file with green squiggly lines (VS Code) and after deleting that parameter everything worked perfectly after I restarted VS Code.

current tsconfig file:

“compilerOptions”: {
“target”: “es5”,
“module”: “commonjs”,
“noEmitOnError”: false,
“rootDir”: “.”,
“emitDecoratorMetadata”: true,
“experimentalDecorators”: true,
“sourceMap”: false,
“sourceRoot”: “”,
“inlineSourceMap”: false,
“inlineSources”: false
“exclude”: [
“compileOnSave”: false


I had the same issue. Removing the files property seemed to do the trick for me as well. I wonder if that is needed for anything?

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  • By invoking tsc with no input files, in which case the compiler searches for the tsconfig.json file starting in the current directory and continuing up the parent directory chain.

  • By invoking tsc with no input files and a -project (or just -p) command line option that specifies the path of a directory containing a tsconfig.json file.

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