Error 2304 ("Cannot find name...") but only with tide.

[ghost]

Hi!

Thanks for such a great project but I've hit a snag. I'm not sure that this is actually a problem with tide though I'm only seeing this problem within the IDE, not at the command line with tsc.

I have a Typescript project that is compiling nicely through tide/tsserver integration. Except for one file where I am making use of Proxy. Tide reports an error in Emacs as Cannot find name "Proxy". [2304].

At the command line I can successfully run the following (build/test.js is generated without errors):

tsc --target 'es2017' --module 'commonjs' --lib 'es2017' --outDir build ./src/test.ts

However tide reports Cannot find name "Proxy". [2304]. The tsconfig.json I'm using:

{
    "compileOnSave": true,
    "compilerOptions": {
        "target": "es2017",
        "module": "commonjs",
        "outDir": "build",
        "lib": [
            "es2017"
        ]
    },

    "include": [
        "src/**/*"
    ]
}

I also checked the tsserver log (I enabled TSS_LOG) and see that the above tsconfig.json is being referenced. The relevant output from that log that's generating an error is:

 {"command":"semanticDiagnosticsSync","seq":"403","arguments":{"file":"/.../test.ts"}}
...
{"seq":0,"type":"response","command":"semanticDiagnosticsSync","request_seq":"403","success":true,"body":[{"start":{"line":1,"offset":18},"end":{"line":1,"offset":23},"text":"Cannot find name 'Proxy'.","code":2304,"category":"error"}]}

I understand that this may be a question for https://github.com/Microsoft/TypeScript/ but I thought I'd check here first. :)

[josteink]

Try tsc without any parameters and see if that compiles.

If yes, check your tide settings and if tide and tsc is from the same version of typescript.

[josteink]

tsc may be global, but tide may use a project-local tsserver etc.

[Rovanion]

I just ran across this issue when I implemented this wmonk/create-react-app-typescript#122 (comment) ugly fix for an issue in create-react-app-typescript. I had added an alias or path @src and the solution seems to have been to rename it simply to src.

[ananthakumaran]

closing this as it seems like an issue somewhere else, reopen if needed.