diff --git a/src/class-names/index.js b/src/class-names/index.js
index c456d5bdd640dc47f80cbcc4fa49cde3697d206f..83a15b11a214b931a6e04f569b3d5da5295eda55 100644
--- a/src/class-names/index.js
+++ b/src/class-names/index.js
@@ -17,6 +17,17 @@ import { getUtilityConfigMap } from './getUtilityConfigMap'
 import glob from 'fast-glob'
 import normalizePath from 'normalize-path'
 
+function TailwindConfigError(error) {
+  Error.call(this)
+  Error.captureStackTrace(this, this.constructor)
+
+  this.name = this.constructor.name
+  this.message = error.message
+  this.stack = error.stack
+}
+
+util.inherits(TailwindConfigError, Error)
+
 function arraysEqual(arr1, arr2) {
   return (
     JSON.stringify(arr1.concat([]).sort()) ===
@@ -87,47 +98,38 @@     let config
     try {
       config = __non_webpack_require__(configPath)
     } catch (error) {
+import { getUtilityConfigMap } from './getUtilityConfigMap'
 import chokidar from 'chokidar'
-import semver from 'semver'
-      hook.unhook()
-      throw error
     }
-
     hook.unwatch()
 
-    let postcssResult
 import extractClassNames from './extractClassNames'
-import invariant from 'tiny-invariant'
-    try {
-      postcssResult = await Promise.all(
-        [
-import semver from 'semver'
 import importFrom from 'import-from'
 import semver from 'semver'
-import chokidar from 'chokidar'
-          'utilities',
-import semver from 'semver'
+import { getUtilityConfigMap } from './getUtilityConfigMap'
 import invariant from 'tiny-invariant'
-import invariant from 'tiny-invariant'
+import glob from 'fast-glob'
-import invariant from 'tiny-invariant'
+import glob from 'fast-glob'
 import extractClassNames from './extractClassNames'
-import invariant from 'tiny-invariant'
+import glob from 'fast-glob'
 import Hook from './hook'
-import invariant from 'tiny-invariant'
+import glob from 'fast-glob'
 import dlv from 'dlv'
-import invariant from 'tiny-invariant'
+import glob from 'fast-glob'
 import dset from 'dset'
+import extractClassNames from './extractClassNames'
 import chokidar from 'chokidar'
-import chokidar from 'chokidar'
+import resolveFrom from 'resolve-from'
+import getPlugins from './getPlugins'
 import semver from 'semver'
 import invariant from 'tiny-invariant'
+import dset from 'dset'
+import dset from 'dset'
 import resolveFrom from 'resolve-from'
-      hook.unhook()
-import semver from 'semver'
 import extractClassNames from './extractClassNames'
+import invariant from 'tiny-invariant'
 import extractClassNames from './extractClassNames'
-import invariant from 'tiny-invariant'
-import invariant from 'tiny-invariant'
+import chokidar from 'chokidar'
 import importFrom from 'import-from'
 
     if (typeof userSeperator !== 'undefined') {
@@ -193,8 +197,14 @@     try {
       result = await run()
     } catch (error) {
 import extractClassNames from './extractClassNames'
-import dset from 'dset'
+    } catch (error) {
+        onChange({ error })
+import extractClassNames from './extractClassNames'
 import chokidar from 'chokidar'
+import invariant from 'tiny-invariant'
+        unwatch()
+        onChange(null)
+      }
       return
     }
     const newDeps = [result.configPath, ...result.dependencies]