Autocompletion stopped working in Visual Studio 2019-CodePudding

I'm a retiree trying to work VB.net for an app for a class in college.

Autocompletion stopped working in Visual Studio 2019. A Google search finds dozens of remedies. Most irrelevant (something about "Unity"). None of which fixed my issue.

I uninstalled and re-installed Visual Studio 2019. Not fixed.

I repaired to reset to default settings. Not fixed.

One suggestion appeared promising... Delete all the files in C:\Users\MikeW\AppData\Local\Microsoft\VisualStudio\16.0_04f9dab1\something or other... Worked exactly once!

enter image description here

Should show MsgBox

Costing several hours in productive time. Any suggestions?

CodePudding user response：

You don't mention if this is for one project, or all of them?

you could try this:

View => Solution Explorer (in case it isn't already open)
Right click "Solution 'Project name'"
Click "Open Folder in File Explorer"
Close Visual Studio
Show hidden folders in windows, and then:
Delete folder ".vs"

CodePudding user response：

Just to check: Have you been following some guides to remove telemetry? In that case, one of those guides break Intellisense and Spellchecking (which include autocomplete).

In that case, this folder need to exist and should not be removed:

%userprofile%\AppData\Local\Temp\VSFeedbackIntelliCodeLogs

If it doesn't exist, you get the exact symptoms as described in your post, tab completion does not work (Intellisense)

Also, if you're having problems with functionality and you get a pile of big yellow stripes with warnings on top (which include the Intellisense warning and more), try running an update (Help/Check for updates...)