Compilation error: Property '"method"' is incompatible with index signature.

[xuyinofnyc]

I am using Angular core 15.2.0, and tried 14.0.0, 15.0.0 and 16.0.0 versions of ngx-filesaver and all got following error:

Error: node_modules/ngx-filesaver/src/filesaver.directive.d.ts:30:94 - error TS2344: Type '{ method: { alias: "method"; required: false; }; http: { alias: "http"; required: false; }; query: { alias: "query"; required: false; }; header: { alias: "header"; required: false; }; url: { alias: "url"; required: true; }; fileName: { ...; }; fsOptions: { ...; }; }' does not satisfy the constraint '{ [key: string]: string; }'.

Property '"method"' is incompatible with index signature.

Type '{ alias: "method"; required: false; }' is not assignable to type 'string'.

30 static ɵdir: i0.ɵɵDirectiveDeclaration<FileSaverDirective, "[fileSaver]", ["fileSaver"], { "method": { "alias": "method"; "required": false; }; "http": { "alias": "http"; "required": false; }; "query": { "alias": "query"; "required": false; }; "header": { "alias": "header"; "required": false; }; "url": { "alias": "url"; "required": true; }; "fileName": { "alias": "fileName"; "required": false; }; "fsOptions": { "alias": "fsOptions"; "required": false; }; }, { "success": "success"; "error": "error"; }, never, never, true, never>;

Seems the grammar is not compatible with Angular. What am I missing?

[cipchk]

1. Make sure to use angular, ngx-filesaver is 15.x
2. Try to remove node_modules and package.json (or yarn.lock),
3. Finally yarn installs dependencies

[xuyinofnyc]

I tried

npm install ngx-filesaver@15.x
Same error.
For Angular, I am using Angular cli 15.2.0.
What do you mean remove node_modules?

[xuyinofnyc]

Using yarn seems working, but not npm. I have to rely on npm now. Can this be fixed?

[cipchk]

This problem should be the result of not installing dependencies correctly. It should not be directly related to ngx-filesaver. You can use npm ls -a to check whether the specific dependency version details are correct.