Ionic-framework: Error: node_modules/@types/es6-promise/index.d.ts(11,15): error TS2300: Duplicate identifier 'Promise'.

[klochko7]

Hi everyone,
I tried to update my project with Ionic2 RC0. I choose the way creating a new Ionic 2 project and copying my project files to it. What can I do to solve this ?

Cordova CLI: 6.3.1
Ionic Framework Version: 2.0.0-rc.0
Ionic CLI Version: 2.1.0
Ionic App Lib Version: 2.1.0-beta.1
OS:
Node Version: v6.7.0
[email protected]

[danbucholtz]

What does your tsconfig look like? Are you still using typings? You are getting a collision of types. It should not happen if you started with a fresh project.

Thanks,
Dan

[klochko7]

danbucholtz, Hi.

tsconfig
{
"compilerOptions": {
"allowSyntheticDefaultImports": true,
"declaration": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"lib": [
"dom",
"es2015"
],
"module": "es2015",
"moduleResolution": "node",
"target": "es5"
},
"exclude": [
"node_modules"
],
"compileOnSave": false,
"atom": {
"rewriteTsconfig": false
}
}

[danbucholtz]

Can you start a new project and keep running ionic serve between each step until you identify where you're getting the collision? I'm not sure what is going on with your project, but it is very likely a library you're importing or something. Are you importing es6-shim or es6-promise` or anything like that?

Thanks,
Dan

[danbucholtz]

Oh, you don't need the @types/es6-promise stuff. Typescript is providing that via the lib option in the tsconfig.json.

Closing this issue for now.

Thanks,
Dan