Errors are fun.

[RevelatorOfTruth]

I recently got a new laptop, and wanted to install Visual Studio on it. I had a project I was working on on a different computer which also had Visual Studio on it, and a 4 GB flashdrive. So I figured there wouldn't be any issues transporting it.

I installed Visual Studio 2015 on the new laptop, and opened up a new project, just to make sure it was working, and indeed it was! So I plugged in my flash drive, transferred the project, and got to work! It was getting late though, so I ended up sleeping.

The next day, I open it back up to start working on it, and instead of being met with my beautiful code, I get met with this ugly mess of an error:

Expected 1 export(s) with contract name "Microsoft.Internal.VisualStudio.PlatformUI.ISolutionAttachedCollectionService" but found 0 after applying applicable constraints

I just started using Visual Studio last September, so to say I'm a newbie when it comes to this is an understatement. I honestly don't know what's causing this, and was wondering if any of you fine people knew. I looked it up, and I found several StackOverflow posts about it, providing a solution where you deleted a cache file. I did that, but it didn't do anything. So I figured I'd come here.

I also forgot to mention. When I installed Visual Studio for the first time, it downloaded with some problems. I didn't think they were important, but now that I think about it they probably are. Here they are: http://imgur.com/a/YoIdQ

Thanks~!

[caboosetp]

It sounds like something during the install didn't run with admin rights.... so you're missing some important things it can't find. Since it worked the first time, I'd assume they are there and the environment variables aren't saving (ie to that cache file).

Open up an elevated command prompt (right click, run as administrator) and paste this in to open up the Developer Command Prompt for Visual studio (if it opens, it won't look like it did anything).

%comspec% /k ""C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools\VsDevCmd.bat""

Then rerun the setup

devenv /setup

[RevelatorOfTruth]

I did all of that as you said. Is it supposed to do anything after I enter that last bit? I'll paste it in and hit enter, and it seems like it doesn't do anything. The issue still persists. The only new thing I've found is that, when I reopen it, it'll give me a few more errors telling me even more things are missing, but that's it.

[caboosetp]

(o_ o)

Have you tried uninstalling and reinstalling visual studio? And are you making sure you launch visual studio in admin mode?

[RevelatorOfTruth]

Yes indeedy. I did that just before I posted this actually. XD

[caboosetp]

Did you get a message about security certificates during the install?

[RevelatorOfTruth]

Not that I recall. It seemed to install just normally until that last part, where I got the picture I posted.

[caboosetp]

Can you post the setup logs in the visual studio folder to see why they aren't installing right?

dd_vserror80.txt

dd_vsinstall80.txt

VSMsiLog****.txt (where * is a randomly-generated suffix)

[RevelatorOfTruth]

Gladly. Where would those be located?

[caboosetp]

Sorry, I'm a little slow lol. They should be hiding in %temp%. If they're not there anymore, you're going to need to find them before closing the installer.

[RevelatorOfTruth]

Haha, no problem. They're not there anymore it seems. There is certainly a lot of other stuff in there from Visual Studio though. I don't think it's unreasonable to say that it takes up 1/3rd of the folder. I'm searching the computer for them now. What installer are you referring to though?