Ndtyjky

I'm trying to use Cytoscape.js with typescript but I'm having issues with the compiler.
I used npm install -save cytoscape

I get the following error:

error TS1192: Module '"C:/Work/node_modules/@types/cytoscape/index"' has no default export. 2 import cytoscape from 'cytoscape';

import cytoscape from 'cytoscape';



var cy = (<any>window).cy = cytoscape(CytoscapeDefaults.defaults);

Interestingly enough, the intellisense shows the parameters to pass to cytoscape.

If I try and run it, I get pretty much the same error:

cytoscape_1.default is not a function

Here's my tsconfig.json

    {

  "compilerOptions": {

    /* Basic Options */

    "target": "es6",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */

    "module": "es2015",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */

     "lib": ["es6", "es2015", "es2017.object", "dom", "es2015.core"],   /* Specify library files to be included in the compilation. */

    // "allowJs": true,                       /* Allow javascript files to be compiled. */

    // "checkJs": true,                       /* Report errors in .js files. */

    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */

    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */

    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */

     "sourceMap": true,                     /* Generates corresponding '.map' file. */

    // "outFile": "./",                       /* Concatenate and emit output to single file. */

    // "outDir": "./",                        /* Redirect output structure to the directory. */

    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */

    // "composite": true,                     /* Enable project compilation */

    // "removeComments": true,                /* Do not emit comments to output. */

    // "noEmit": true,                        /* Do not emit outputs. */

    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */

    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */

    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */



    /* Strict Type-Checking Options */

    "strict": true,                           /* Enable all strict type-checking options. */

    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */

    // "strictNullChecks": true,              /* Enable strict null checks. */

    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */

    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */

    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */

    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */



    /* Additional Checks */

    // "noUnusedLocals": true,                /* Report errors on unused locals. */

    // "noUnusedParameters": true,            /* Report errors on unused parameters. */

    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */

    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */



    /* Module Resolution Options */

    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */

    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */

    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */

    // "rootDirs": ,                        /* List of root folders whose combined content represents the structure of the project at runtime. */

    // "typeRoots": ,                       /* List of folders to include type definitions from. */

    // "types": ,                           /* Type declaration files to be included in compilation. */

    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */

    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */

    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */



    /* Source Map Options */

    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */

    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */

    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */

     "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */



    /* Experimental Options */

    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */

    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */

  }

}

I found this issue on github, that might solve your problem:

"compilerOptions": {

    "sourceMap": true,

    "module": "esnext",

    "moduleResolution": "node",

    "target": "es5",

    "jsx": "react",

    "allowSyntheticDefaultImports": true,    // that is probably the important one

    "esModuleInterop": true,                 // this also

    "typeRoots": [

      "./node_modules/@types/"

    ],

}

Another issue on the topic