Webstorm Typescript support - Could not find symbol?

Question

I have code like this in my .ts file

test.control('test-change', TestChange);

My test module is initialized in lib/test.ts, and it is properly transpiling to test.js.

However, when I write the above code, webstorm throws this error on that line of code:

error TS2095: Could not find symbol 'test'.

Is there any solution within Webstorm to avoid this error? The code seems perfectly fine, and it even worked previously. I am also using code that has worked within Visual Studio, so it seems like the code is not the issue here.

basarat · Accepted Answer · 2014-05-13 02:06:44Z

3

Visual studio implicitly includes all TypeScript files in your project into the global namespace. For compiling with tsc manually or using Webstorm / whatever else you need to have explicit references.

/// <reference path="../path/to/lib/test.ts"/>

You can potentially just use a reference.ts https://github.com/grunt-ts/grunt-ts#reference-file-generation although I no longer recommend that

Grunt-ts can take ///ts:ref=test and generate a reference tag for you.

answered May 13, 2014 at 2:06

basarat

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3 Comments

Luigi Over a year ago

Following the above still leaves me with the same errors :/ I tried referencing the file directly as well as using grunt-ts to create a reference.ts file and referencing that instead. For what it's worth, it does seem that the code is actually building and working now, it just fills my console up with Could not find symbol errors.

Ilya Ivanov Over a year ago

+1 nice answer. Could you please elaborate on why you no longer recommend that?

basarat Over a year ago

@llya Thanks. From the link github.com/TypeStrong/grunt-ts#reference-file-generation

Warning: Using the compiler with --out / reference.ts will slow down a fast compile pipeline. Use external modules with transforms instead.

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