Ensure absolute path to babel transform

src/index.js

@@ -1,6 +1,7 @@
 #!/usr/bin/env node
 import fs from 'fs';
 import coffeeReactTransform from 'coffee-react-transform';
+import path from 'path';
 import { convert as decaf } from 'decaffeinate';
 import { transform as babelTransform } from 'babel-core';
 import camelCase from 'lodash/camelCase';
@@ -88,7 +89,9 @@ function processFile(file) {
   try {
     result = babelTransform(result, {
       babelrc: false,
-      plugins: ['transform-react-createelement-to-jsx'],
+      plugins: [
+        path.join(__dirname, '../node_modules', 'babel-plugin-transform-react-createelement-to-jsx'),
+      ],
     }).code;
   } catch (e) {
     renderError({ label: 'Babel error', message: e });