Web Performance and Load Test project error set

When we create Web performance and Load Test project, we often encounter these problems:

1. When you click Add Recording,

The record tree on the left does not appear:

Workaround:

Open IE Manage add-ons:

Enable Microsoft Web Test Recorder 12.0 Helper:

2. Failed when trying to upload an event

Workaround:

Copy the upload files to project, and set the "Copy to Output Directory" property in Properties window to ' copy always '

Double Click TestSettings, add the upload files to deployment:

Finally, upload successfully:

3. Report 401 Error

Click Set Credentials, enter your username and password: