.\install.ps1 version isn't working #6029

./install.ps1

dotnet_install: Downloading https://dotnetcli.blob.core.windows.net/dotnet/beta/Binaries/1.0.0-preview1-002692/dotnet-dev-win-x64.1.0.0-preview1-002692.zip 
dotnet_install: Extracting zip from https://dotnetcli.blob.core.windows.net/dotnet/beta/Binaries/1.0.0-preview1-002692/dotnet-dev-win-x64.1.0.0-preview1-002692.zip 
dotnet_install: Adding to current process PATH: "C:\Users\appveyor\AppData\Local\Microsoft\dotnet\". Note: This change will not be visible if PowerShell was run as a child process. 
dotnet_install: Installation finished 

dotnet : Found dotnet SDK, but did not find dotnet.dll at [C:\Users\appveyor\AppData\Local\Microsoft\dotnet\sdk\1.0.0-preview1-preview1-002692\dotnet.dll]
At C:\projects\secret:139 char:33
+         Start-NativeExecution { dotnet restore $RestoreArguments }
+                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (Found dotnet SD...692\dotnet.dll]:String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError