aws / aws/aws-toolkit-visual-studio

Failed to bind to address error

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bug
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Description

**Describe the bug**
Running a brand new Serverless application results in an "Unknown error occurred causing process exit: Failed to bind to address http://localhost:5050." error

**To Reproduce**

**Expected behavior**
The project should run without any error

**Screenshots**
See screenshots

**Computer (please complete the following information):**

- Windows Version: Windows 10 Enterprise 10.0.16299 Build 16299
- Visual Studio Version: 2019
- AWS Toolkit for Visual Studio Version: 1.17.1.0
![aws_vs_issue_2](https://user-images.githubusercontent.com/9220595/83141745-31ebf880-a0be-11ea-9dea-1d4c1280a118.PNG)
![aws_vs_issue_3](https://user-images.githubusercontent.com/9220595/83141766-37494300-a0be-11ea-8502-32dace754915.PNG)
![aws_vs_issue_4](https://user-images.githubusercontent.com/9220595/83141787-3f08e780-a0be-11ea-8f43-6ccf0347f322.PNG)
![aws_vs_issue_5](https://user-images.githubusercontent.com/9220595/83141802-46c88c00-a0be-11ea-817e-93de6bc93da4.PNG)
![aws_vs_issue_6](https://user-images.githubusercontent.com/9220595/83141854-4a5c1300-a0be-11ea-834a-bbbcc4c175a4.PNG)
![aws_vs_issue_1](https://user-images.githubusercontent.com/9220595/83141898-4d570380-a0be-11ea-801c-4a52dd16881b.PNG)

**Additional context**

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the failure with a brand-new Serverless Application in Visual Studio 2019, launched through the Mock Lambda Test tool, using the reported Windows and AWS Toolkit versions. Trace the local process startup around http://localhost:5050 and compare the behavior with a working project. Done means the application starts without the failed-to-bind error.

Written by the indexing model from the issue text.

Assessment

Tech stack
aws
Domain
devtools
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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