npm and error messages

node_modules/vue-loader/lib/utils/normalize.js

@@ -0,0 +1,19 @@
+const IS_TEST = !!process.env.VUE_LOADER_TEST
+const fs = require('fs')
+const path = require('path')
+
+exports.lib = file => path.resolve(__dirname, '../', file)
+
+exports.dep = dep => {
+  if (IS_TEST) {
+    return dep
+  } else if (
+    fs.existsSync(path.resolve(__dirname, '../../node_modules', dep))
+  ) {
+    // npm 2 or npm linked
+    return 'vue-loader/node_modules/' + dep
+  } else {
+    // npm 3
+    return dep
+  }
+}

node_modules/vue-loader/lib/utils/try-require.js

@@ -0,0 +1,18 @@
+const cwd = process.cwd()
+const resolve = require('resolve')
+
+// attempts to first require a dep using projects cwd (when vue-loader is linked)
+// then try a normal require.
+module.exports = function tryRequire (dep) {
+  let fromCwd
+  try {
+    fromCwd = resolve.sync(dep, { basedir: cwd })
+  } catch (e) {}
+  if (fromCwd) {
+    return require(fromCwd)
+  } else {
+    try {
+      return require(dep)
+    } catch (e) {}
+  }
+}