title: sam local start-api Unable to import module
body: <p>I just create a lambda function with content (file name is check.js):</p>
  
  <pre><code>exports.handler = async (event, context, callback) =&gt; {
      console.log("My message");
  };
  </code></pre>
  
  <p>And content of template.yaml</p>
  
  <pre><code>    AWSTemplateFormatVersion : '2010-09-09'
      Transform: AWS::Serverless-2016-10-31
      Description: My first serverless application.
      Resources:
        CreateOrder:
          Type: AWS::Serverless::Function
          Properties:
            Handler: check.handler
            Runtime: nodejs8.10
            Timeout: 30
            MemorySize: 512
            Events:
              Step1:
                Type: Api
                Properties:
                  Path: /
                  Method: any
  </code></pre>
  
  <p>After that I used conmand: sam local start-api</p>
  
  <p>I received error: </p>
  
  <pre><code>Fetching lambci/lambda:nodejs8.10 Docker container image......
  2018-11-19 11:33:48 Mounting D:\project\lambda1\BbeOrder as /var/task:ro inside runtime container
  [32mSTART RequestId: 5b55437b-da83-132e-ea70-7661e1dbe757 Version: $LATEST[0m
  [31mUnable to import module 'check': Error[0m
  [31m    at Function.Module._resolveFilename (module.js:547:15)
  at Function.Module._load (module.js:474:25)
  at Module.require (module.js:596:17)
  at require (internal/module.js:11:18)[0m
  [32mEND RequestId: 5b55437b-da83-132e-ea70-7661e1dbe757[0m
  [32mREPORT RequestId: 5b55437b-da83-132e-ea70-7661e1dbe757     Duration: 3.66 ms       Billed Duration: 100 ms Memory Size: 512 MB     Max Memory Used: 31 MB  [0m
  2018-11-19 11:33:49 No Content-Type given. Defaulting to 'application/json'.
  2018-11-19 11:33:49 127.0.0.1 - - [19/Nov/2018 11:33:49] "GET / HTTP/1.1" 200 -
  2018-11-19 11:33:50 127.0.0.1 - - [19/Nov/2018 11:33:50] "GET /favicon.ico HTTP/1.1" 403 -
  </code></pre>
  
  <p>I remember the before it is fine. But it has problem since I reinstall Docker.
  Please help me for this problem.</p>