Build: '(' expected in *.d.ts files. Cannot compile TypeScript project

Question

I'm trying to build my Angular 2 TypeScript asp.net core project in Visual Studio 2015, but what I see is:

Severity Code Description Project File Line Suppression State Error TS1005 Build:'(' expected. MExplore C:\Users\Piotrek\documents\visual studio 2015\Projects\MProjects\MExplore\wwwroot\lib\@angular\core\esm\src\linker\query_list.d.ts 36
Error TS1005 Build:'(' expected. MExplore C:\Users\Piotrek\documents\visual studio 2015\Projects\MProjects\MExplore\wwwroot\lib\@angular\compiler\esm\src\output\output_interpreter.d.ts 7
Error TS1005 Build:'(' expected. MExplore C:\Users\Piotrek\documents\visual studio 2015\Projects\MProjects\MExplore\wwwroot\lib\@angular\compiler\esm\src\output\output_interpreter.d.ts 8
Error TS1005 Build:'(' expected. MExplore C:\Users\Piotrek\documents\visual studio 2015\Projects\MProjects\MExplore\wwwroot\lib\@angular\compiler\esm\src\output\output_interpreter.d.ts 9
Error TS1005 Build:'(' expected. MExplore C:\Users\Piotrek\documents\visual studio 2015\Projects\MProjects\MExplore\wwwroot\lib\@angular\common\esm\src\forms-deprecated\model.d.ts 53
Error TS1005 Build:'(' expected. MExplore C:\Users\Piotrek\documents\visual studio 2015\Projects\MProjects\MExplore\wwwroot\lib\@angular\common\esm\src\forms-deprecated\model.d.ts 98
Error TS1005 Build:'(' expected. MExplore C:\Users\Piotrek\documents\visual studio 2015\Projects\MProjects\MExplore\wwwroot\lib\@angular\common\esm\src\forms-deprecated\model.d.ts 52

and so on...

So, the basic pattern of what those 3743 errors look like is:

Build: '[something]' expected.

And files that problem happens always end with *.d.ts.

I thought that it was a problem with typings, but I have proper reference in my bootstraper (main.ts file)

///<reference path="./../../typings/globals/core-js/index.d.ts"/>

and those references inside:

/// <reference path="globals/core-js/index.d.ts" />
/// <reference path="globals/jasmine/index.d.ts" />
/// <reference path="globals/node/index.d.ts" />

I used it many times before and it worked...

I also use gulp ('gulp-typescript') to compile typescript to javascript and copy it to other place. It works well and no errors are shown. So maybe there are no problems with my code itself, but rather I configured something incorrectly in Visual Studio?

What do you think?

Piotrek · Accepted Answer · 2016-08-07 20:38:29Z

2

According to this GitHub issue, *.d.ts files should be excluded from compilation. So, basically, that's what you should do in tsconfig.json file:

{
  [...]
  [some stuff]
  [...]
  "exclude": [
    "folder_where_you_have_those_faulty_files"
  ]
}

Comment 1:

you should exclude some folders from tsc building to *avoid *to compile .d.ts files.

Comment 2:

the key point is not compiling *.d.ts no matter which typescript version you use. in your project, you should exclude all of the *.d.ts compilation to get rid of this issue.

Thank you, @danny8002!

answered Aug 7, 2016 at 20:38

Piotrek

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2 Comments

Jason Coyne Over a year ago

but tsconfig is mutually exclusive with CSProj, how do we exclude those files in a csproj!

alex351 Over a year ago

I already have the node_modules folder inside the exclude array. But it includes it anyways.

LCarter · Accepted Answer · 2020-01-25 20:42:58Z

1

I was getting this error TS110 Build Typescript expected core.d.ts only when building Visual Studio. When Visual Studio builds it uses the tsc -w. This causes it to build all files *.ts under the directory and it doesn't distinguish between *.d.ts and *.ts, so will try to compile them. The *.d.ts files are type define files and can not be compiled. So you have to just tell ts to ignore node_modules folder.

You do this by adding the following "exclude" : [ "node_modules","typings"] to the tsconfig.json. You should always ignore these two folders.

{
    "compilerOptions": {
        "module": "system",
        "noImplicitAny": true,
        "removeComments": true,
        "preserveConstEnums": true,
        "outFile": "../../built/local/tsc.js",
        "sourceMap": true
    },
    "include": [
        "src/**/*"
    ],
    "exclude": [
        "node_modules","typings"
      ]
}

answered Jan 25, 2020 at 20:42

LCarter

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1 Comment

Sotiris Zegiannis Over a year ago

this doesnt seem to have any effect. The error keeps occuring!

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