Following the Angular2 TS Quickstart, I end up having duplicate files in many folders across my project.
For browser:
typings/browser
node_modules/angular2/typings/browser
For es6-shim:
node_modules/angular2/typings/es6-shim
typings/browser/ambient/es6-shim
typings/main/ambient/es6-shim
It results in Duplicate Identifier errors during build.
How do we prevent / suppress TS from raising duplicate identifier errors?
I have included node_modules in my exclude list, however, since I am using Angular2 in my includes, TSD is including them back, because of moduleResolution "node". Replacing it with another moduleResolution value such as "classic" causes other problems.
This is my tsconfig.json:
{
"compilerOptions": {
"target": "es5",
"module": "system",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": false,
"outDir": "./dist"
},
"exclude": [
"bower_components",
"node_modules",
"typings/main",
"typings/main.d.ts"
]
}
UPDATE 1
Here's my appcomponent.ts:
///<reference path="../../node_modules/angular2/typings/browser.d.ts"/>
import {bootstrap} from 'angular2/platform/browser';
import {LocationComponent} from '../location/components/locationcomponent';
import {VideosComponent} from '../videos/components/videoscomponent';
bootstrap(LocationComponent, [])
.catch(err => console.error(err));
bootstrap(VideosComponent, [])
.catch(err => console.error(err));
UPDATE 2
This is what I have for my web project file.
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0</VisualStudioVersion>
<VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
</PropertyGroup>
<Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" Condition="'$(VSToolsPath)' != ''" />
<PropertyGroup Label="Globals">
<ProjectGuid>3775534b-d08c-45f2-8d5a-4a4f6e91edb9</ProjectGuid>
<RootNamespace>MyProject</RootNamespace>
<BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
<OutputPath Condition="'$(OutputPath)'=='' ">..\..\artifacts\bin\$(MSBuildProjectName)\</OutputPath>
<SccProjectName>SAK</SccProjectName>
<SccProvider>SAK</SccProvider>
<SccAuxPath>SAK</SccAuxPath>
<SccLocalPath>SAK</SccLocalPath>
</PropertyGroup>
<PropertyGroup>
<SchemaVersion>2.0</SchemaVersion>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)' == 'Debug'">
<TypeScriptTarget>ES5</TypeScriptTarget>
<TypeScriptJSXEmit>None</TypeScriptJSXEmit>
<TypeScriptCompileOnSaveEnabled>True</TypeScriptCompileOnSaveEnabled>
<TypeScriptNoImplicitAny>False</TypeScriptNoImplicitAny>
<TypeScriptModuleKind>CommonJS</TypeScriptModuleKind>
<TypeScriptRemoveComments>False</TypeScriptRemoveComments>
<TypeScriptOutFile />
<TypeScriptModuleResolution>NodeJs</TypeScriptModuleResolution>
<TypeScriptOutDir />
<TypeScriptGeneratesDeclarations>False</TypeScriptGeneratesDeclarations>
<TypeScriptNoEmitOnError>True</TypeScriptNoEmitOnError>
<TypeScriptSourceMap>True</TypeScriptSourceMap>
<TypeScriptMapRoot />
<TypeScriptSourceRoot />
<TypeScriptExperimentalDecorators>True</TypeScriptExperimentalDecorators>
</PropertyGroup>
<Target Name="FixTsBuildConfiguration" BeforeTargets="CompileTypeScript" >
<PropertyGroup>
<TypeScriptBuildConfigurations>$(TypeScriptBuildConfigurations.Replace("--moduleResolution NodeJs", "--moduleResolution node"))</TypeScriptBuildConfigurations>
</PropertyGroup>
</Target>
<ItemGroup>
<DnxInvisibleContent Include="bower.json" />
<DnxInvisibleContent Include=".bowerrc" />
<DnxInvisibleContent Include="package.json" />
<DnxInvisibleFolder Include="wwwroot\bower_components\" />
<DnxInvisibleFolder Include="wwwroot\node_modules\" />
</ItemGroup>
<Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
</Project>
UPDATE 3
I found out that setting up Angular2 in Visual Studio 2015 requires another approach. I followed the steps in Starting Angular 2 in ASP.NET 5 with TypeScript using Visual Studio 2015 and I didn't get any build issues anymore.
Typescript <= 1.6
You need to exclude the node_modules and the typings/main files in your tsconfig.json
with **
"exclude": [
"bower_components/**",
"node_modules/**",
"typings/main.d.ts",
"typings/main/**",
],
Without the **
it searches for a file named node_modules typings/main and not the directory itself.
Typescript > 1.6
In typescript versions over 1.6 the **
are not needed.
EDIT
Remove the reference path in your appcomponent.ts
. You don't need reference paths when compiling the typescript like this.
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