title: Duplicate signature for Jasmine in Typescript typings definition
body: <p>Typings file:</p>
  
  <pre><code>{
    "globalDependencies": {
      "bootstrap": "registry:dt/bootstrap#3.3.5+20160619023404",
      "c3": "registry:dt/c3#0.0.0+20160926143332",
      "d3": "registry:dt/d3#0.0.0+20160907005744",
      "headroom": "registry:dt/headroom#0.7.0+20161003183126",
      "jasmine": "registry:dt/jasmine#2.5.0+20161003201800", // IF I REMOVE THIS LINE, I GET NO ERRORS.
      "jasmine-jquery": "registry:dt/jasmine-jquery#0.0.0+20160317120654",
      "jquery": "registry:dt/jquery#1.10.0+20160929162922",
      "lodash": "registry:dt/lodash#4.14.0+20161004174455",
      "modernizr": "registry:dt/modernizr#3.2.0+20160215162030",
      "nouislider": "registry:dt/nouislider#8.0.2+20160412140110",
      "riot-ts": "file:typings/custom/riot-ts.d.ts",
      "riotjs": "registry:dt/riotjs#0.0.0+20160316155526",
      "tf.custom": "file:typings/custom/tf.custom.d.ts",
      "wnumb": "registry:dt/wnumb#1.0.0+20160316155526"
    },
    "dependencies": {
      "requirejs": "registry:npm/requirejs#2.2.0+20160319062357"
    }
  }
  </code></pre>
  
  <p>Getting some duplicate errors from the Typescript compiler. Complains of duplicate string/index signatures. </p>
  
  <p>Inside of node_modules there is a @types directory, which I comes from <code>protractor module</code>. In there is a copy of the <code>jasmine</code> typing, which is not needed in my case.</p>
  
  <p>I can remove from typings, the installation call to jasmine, but that will mess up my IDE. How do I tell Typescript to ignore the <code>@types</code> directory?</p>
  
  <p><em>TSconfig which gulp tsify uses:</em></p>
  
  <pre><code>{
    "compilerOptions": {
      "target": "es5",
      "module": "commonjs",
      "declaration": false,
      "noImplicitAny": false,
      "removeComments": true,
      "noLib": false,
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true
    },
    "exclude": [
      "node_modules",  // this should fix the problem, but doesn't. If I remove this line, I get even more errors.
      "vendor",
      "gulp",
      "typings"
    ]
  }
  </code></pre>
  
  <p><em>Error:</em></p>
  
  <pre><code>   { [TypeScript error: node_modules/@types/jasmine/index.d.ts(74,9): Error TS2375: Duplicate number index signature.]
    message: '../node_modules/@types/jasmine/index.d.ts(74,9): Error TS2375: Duplicate number index signature.',
    fileName: '../node_modules/@types/jasmine/index.d.ts',
    line: 74,
    column: 9,
    name: 'TypeScript error' }
  </code></pre>
  
  <p><em>node modules</em>
  <a href="https://i.stack.imgur.com/TqTyO.png" rel="noreferrer"><img src="https://i.stack.imgur.com/TqTyO.png" alt="enter image description here"></a></p>
  
  <p><em>typings</em>
  <a href="https://i.stack.imgur.com/BuS1Y.png" rel="noreferrer"><img src="https://i.stack.imgur.com/BuS1Y.png" alt="enter image description here"></a></p>
  
  <p><strong>Package json</strong></p>
  
  <pre><code>{
    "license": "UNLICENSED",
    "private": true,
    "devDependencies": {
      "alterclass": "git+https://github.com/sidouglas/alter-class#1.0",
      "babel": "^6.5.2",
      "babel-core": "^6.10.4",
      "babel-preset-es2015": "^6.9.0",
      "babel-register": "^6.9.0",
      "bootstrap-pull": "git+https://github.com/sidouglas/bootstrap-pull.git#3.0.3",
      "browserify-shim": "^3.8.12",
      "dot-object": "^1.4.1",
      "elixir-jasmine": "0.0.4",
      "factor-bundle": "^2.5.0",
      "fs-symlink": "^1.2.1",
      "gulp": "^3.9.1",
      "gulp-replace-task": "^0.11.0",
      "gulp-tslint": "^6.1.1",
      "jasmine-fixture": "^2.0.0",
      "jasmine-jquery": "^2.1.1",
      "jsonminify": "^0.4.1",
      "karma": "^1.1.1",
      "karma-chrome-launcher": "^1.0.1",
      "karma-firefox-launcher": "^1.0.0",
      "karma-ios-simulator-launcher": "0.0.4",
      "karma-jasmine": "^1.0.2",
      "karma-phantomjs-launcher": "^1.0.2",
      "karma-safari-launcher": "^1.0.0",
      "laravel-elixir": "^6.0.0-11",
      "laravel-elixir-bless": "^2.0.0",
      "laravel-elixir-browserify-official": "^0.1.3",
      "laravel-elixir-browsersync": "^0.1.5",
      "laravel-elixir-browsersync-official": "^1.0.0",
      "laravel-elixir-remove": "^0.2.1",
      "laravel-elixir-replace": "^1.1.2",
      "laravel-elixir-scss-lint": "^1.3.1",
      "node-sass": "^3.8.0",
      "precommit-hook": "^3.0.0",
      "protractor": "^4.0.9",
      "replace": "^0.3.0",
      "retyped-bowser-tsd-ambient": "0.0.0-0",
      "run-sequence": "^1.2.1",
      "sass-convert": "^0.5.2",
      "shelljs": "^0.7.4",
      "supplant": "^0.2.0",
      "tsify": "^2.0.1",
      "tslint": "^3.15.1",
      "typescript": "^2.0.3",
      "typings": "^1.4.0",
      "webdriver-manager": "^10.2.4",
      "yargs": "^4.8.0"
    },
    "dependencies": {
      "basename": "^0.1.2",
      "boilerplate": "^0.5.0",
      "bootstrap": "^3.3.6",
      "bootstrap-sass": "^3.3.6",
      "bootstrap-select": "^1.10.0",
      "bowser": "^1.4.2",
      "c3": "^0.4.11",
      "d3": "^4.2.6",
      "del": "^2.2.0",
      "factor-bundle": "^2.5.0",
      "gulp-change": "^1.0.0",
      "gulp-shell": "^0.5.2",
      "headroom.js": "^0.9.3",
      "include-media": "^1.4.5",
      "jquery": "^2.2.4",
      "jquery-replace-class": "0.0.1",
      "lodash": "^4.14.0",
      "nouislider": "^8.5.1",
      "partition-bundle": "^2.5.0",
      "redux": "^3.6.0",
      "requirejs": "^2.2.0",
      "riot": "^2.5.0",
      "riot-ts": "git://github.com/tfsimondouglas/riot-ts.git",
      "webshim": "^1.15.10",
      "wnumb": "git://github.com/tannerhodges/wnumb"
    },
    "scripts": {
      "build": "node node_modules/.bin/gulp --production",
      "gulp": "node node_modules/.bin/gulp",
      "kill": "for pid in `ps -ef | grep gulp | awk '{print $2}'` ; do kill -9 $pid ; done",
      "postinstall": "node node_modules/.bin/typings install &amp;&amp; ./node_modules/.bin/webdriver-manager update &amp;&amp; gem install scss_lint",
      "protractor": "node node_modules/protractor/bin/webdriver-manager start &amp;&amp; node node_modules/.bin/protractor protractor.conf.js",
      "restart": "npm run kill &amp; npm start",
      "scsslint": "scss-lint ./resources/assets/sass/widgets/**/*.scss --config .scss-lint.yml",
      "start": "npm run watch",
      "test": "npm run gulp &amp;&amp; ./node_modules/.bin/karma start --single-run --browsers PhantomJS",
      "tslint": "./node_modules/.bin/tslint ./resources/**/*.ts  -c ./gulp/ts.lint.json --exclude ./resources/views/cms/widgets/product-search-natural-language/**/*.ts",
      "watch": "node node_modules/.bin/gulp watch",
      "validate": "npm ls",
      "lint": "jshint ."
    },
    "pre-commit": [
      "scsslint",
      "tslint"
    ]
  }
  </code></pre>