Nuget Packages - TSC 1.8 is not preferred to Typescript tooling (TSC 1.7.6)

[snerks]

In a VS2015 Typescript HTML App, if I reference the Nuget packages for the 1.8 Typescript compiler and MSBuild Tasks, does the 1.8 TSC compiler in the Nuget package get used in preference to the version associated with the VS2015 Typescript tooling (1.7.6)?

I'm seeing that an attempt to reference a Stateless Functional Component (as shown in the SimpleGreeter example in the release notes) in (say) an App.tsx file, I still get the TSC 1.7 compiler "error":

Error TS2605 JSX element type 'Element' is not a constructor function for JSX elements.

Property 'render' is missing in type 'Element'.

[mhegazy]

Currently the TypeScriptToolsVersion needs to be 1.8 for it to work. I agree that the NuGet package version should take precedence. so we should fix this.
Meanwhile, please manually update your <TypeScriptToolsVersion> property to 1.8..

[snerks]

@mhegazy - Thanks for the feedback. However, having tried your suggestion to change the TypeScriptToolsVersion to 1.8.0, I see the same compiler error.

Is there an example project available that shows the Nuget TSC compiler + MSBuild combination working?

[paulvanbrenk]

@snerks It should be 1.8 exactly

[snerks]

Thanks @paulvanbrenk. I tried this:

<TypeScriptToolsVersion>1.8</TypeScriptToolsVersion>

Same compiler error.

[paulvanbrenk]

Can you share the detailed build diagnostics?

And you project file?

[snerks]

How do I collect detailed build diagnostics?

[snerks]

For info, I'm seeing this after a build attempt:

Warning 0 Your project file uses a newer version of the TypeScript compiler and tools than supported by this version of Visual Studio. Your project may be using TypeScript language features that will result in errors when compiling with this version of the TypeScript tools. To remove this warning, remove the element from your project file.

[snerks]

What is the preferred way to deliver detailed build diagnostics (2555 lines)?

[snerks]

https://github.com/snerks/Ts18Vs2015Issue

Detailed Build Output:
https://github.com/snerks/Ts18Vs2015Issue/blob/master/DetailedBuildOutput.txt

[paulvanbrenk]

You're importing the typescript targets and props file twice, remove the once, which don't point to the NuGet package folder.

See here https://github.com/Microsoft/TypeScript/wiki/Configuring-MSBuild-projects-to-use-NuGet