TypeScript 1.3 protected error - visual-studio-2013

Question

Recently installed new TS version into VS2013 and tried to use protected modifier.
However TS validator shows me an error (and underlines protected word with a red line.
I get an error like
Use of future reserver word.
; expected
looks like it's looking into old TS definitions.
Checked the project file and there is 1.1 version of TypeScript.
also running tsc -v produces 1.3.0.
Does somebody of you guys experience that?
What i'm missing and what to do to fix that.
Thank you a lot for any help.
export class SomeClass {
protected metadata: Metadata;
protected subItems: SomeClass[];
constructor() {
}
}

Answer 1

thank you all guys. for your answers!
the reason was (oh, what's the shame =) ) the ReSharper.
It's validation was showing that error, suspending it i'm getting no errors now.
Looks like JetBrains guys should update their definitions like Web Essentials did.
As they aren't compatible with new TS version, 1.3. And no updates pending as for now.
Hope, it'll be useful for somebody else.

Answer 2

The answer to your question then is ReSharper 9.0 EAP.
It supports TypeScript 1.3 features: 'protected' modifier and tuples.
You're welcome to try it. Though, yes, it's a pre-release version, so overall stability is not strictly guaranteed.

Answer 3

Are you building from within Visual Studio, or from the command-line? What with different versions of the SDK being installed, as well as potentially the NPM package globally (if you've ever installed that), it can get quite messy as to which version gets picked up. For example, if I run 'where tsc' from the command prompt, I get the below hits (and this is without the 1.1 SDK on the path, though I am in the bin folder for testing the latest bits)
S:\src\TypeScript\bin>where tsc
S:\src\TypeScript\bin\tsc
S:\src\TypeScript\bin\tsc.js
C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\tsc.exe
C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.0\tsc.js
C:\Users\billti\AppData\Roaming\npm\tsc
C:\Users\billti\AppData\Roaming\npm\tsc.cmd
Can you verify via "where tsc" the locations and order you PATH is resolving the 'tsc' command?
That said, if you're building from within a VS project, it should locate the latest SDK via the build target. Does this also occur with a new TypeScript project (where the latest version and targets file should be referenced)?
Failing that, and I hate to say it... ready... did you try rebooting? :-) Sometimes updates to the PATH etc.. after an install don't get picked up until processes restart, and things like MSBuild can actually linger waiting for the next build as a perf optimization, rather than exit once the build is done (and thus may not pick up environment changes immediately).

Answer 4

It didn't work for me too. What I did to fix it was installing VS2013 Update 4 and after that, I executed the TypeScript 1.3 setup again and did a repair.
Also, you should make sure you don't have <TypeScriptToolsVersion>1.0</TypeScriptToolsVersion> in your csproject defined. Set it to 1.1 (not 1.3) or remove it entirely (then it will use the latest one). Hope that helps!

Answer 5

You can determine whether the issue is related to Visual Studio pointing at the wrong TypeScript version by following these steps.
Place this example code in C:\Temp\app.ts
interface Metadata {
something: string;
}
export class SomeClass {
protected metadata: Metadata;
protected subItems: SomeClass[];
constructor() {
}
}
export class OtherClass extends SomeClass {
constructor() {
super();
this.metadata = null;
}
}
var x = new SomeClass();
// Not allowed
// x.metadata = null;
Run the command:
C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.1>tsc --module amd c:\Temp\app.ts
Taking care to ensure you are pointing at the 1.1 folder in the TypeScript SDK folder.
The output should be:
C:\Program Files (x86)\Microsoft SDKs\TypeScript\1.1>
i.e. nothing, except you now have an app.js file.
You can also re-run the test after uncommenting the x.metadata = null; line - at which point you should get the error:
c:/Temp/app.ts(22,1): error TS2445: Property 'metadata' is protected and only accessible within class 'SomeClass' and its subclasses.
Next Steps...
If the above fails, please supply details of the problem.
The only real answer we could give though it remove it and check the 1.1 folder is gone before re-installing it by fetching the installer fresh from the Microsoft website (perhaps you have a bad installer or there was some problem during installation?) You may also want to check that you are on Visual Studio Update 4, as I am testing it on Update 4.
If the above worked as expected, your Visual Studio is not pointing at the correct version.
This could be because of the project file as Dick van den Brink has correctly mentioned. Check that you have <TypeScriptToolsVersion>1.1</TypeScriptToolsVersion> and that it is the only element with this name.
It can also be down to any Visual Studio extensions that may be messing with your TypeScript (for example, if you had a really old version of Web Essentials - in which case, update it - if it is some other extension, try disabling it).