Xmal designer won't load when trying to create windows 10 un

[ChrisBriggsy]

I've started working on Windows 10 IoT apps, and I'm baffled by the following issue:

The XAML designer won't load when trying to create Windows 10 universal apps in Windows 8 VS 2015 RC. Upon comparing the blank project XAML for Windows 8 applications to the new blank project XAMLfor windows, they appear to be identical.

Except when I double click my Windows 10 Mainpage.xmal I only see the code and the show designer button doesn't do anything.

[jamierc80]

I had the same issue, I went back to the installation page and ran the "Add the tools" option even though I had installed the latest version and after the installation has completed it all seemed to work fine.

https://dev.windows.com/en-us/downloads ... tudio-2015

[ChrisBriggsy]

Thank you jamierc80 but sadly no joy.

[jerryellis]

I never got any love with the designer on a windows 8.1 machine. I tried a few repairs and reinstalls to no avail. I finally gave up and installed windows 10 on my surface pro 3, and now the designer shows up. But here's a fun fact: If you select ARM as your platform you get "Design view is unavailable for x64 and ARM target platforms"

[jonesypeter]

Hi,

I found the same. I got around it by designing the UI with anything other than x64 or ARM selected, then when you ready to publish you can then change to ARM.

[ChrisBriggsy]

Thank you jonesypeter & jerryellis for you replies,

: If you select ARM as your platform you get "Design view is unavailable for x64 and ARM target platforms"

Very interesting because if I select ARM, all i see is xaml code no the error message.

[jtanner_msft]

The fact that the designer will only work on Windows 10 preview, and only for x86 at the moment is currently expected behavior. Some other version limitations that you might encounter when running VS 2015 RC on 8.1 and older versions:

a) You get XAML intellisense but not designer when you are running on Win8.1 or lower.
b) You get emulators support only on Win8.1 or higher.
c) You don't get local machine or simulator options when running on Win8.1 or lower.

Some of this might change in the future, but for the moment this is expected.
I hope this helps.