TypeError: Cannot read property 'name' of undefined

[jasonxia23]

Summary

TypeError: Cannot read property 'name' of undefined

Simplest Example to Reproduce

request.post({
    url: '/cdn/upload',
    formData: {
        // Pass a simple key-value pair 
        my_field: 'my_value',
        // Pass data via Buffers 
        my_buffer: new Buffer([1, 2, 3]),
        // Pass data via Streams 
        my_file: fs.createReadStream(__dirname + '/unicycle.jpg'),
        // Pass multiple values /w an Array 
        attachments: [
            fs.createReadStream(__dirname + '/attachment1.jpg'),
            fs.createReadStream(__dirname + '/attachment2.jpg')
        ],
        // Pass optional meta-data with an 'options' object with style: {value: DATA, options: OPTIONS} 
        // Use case: for some types of streams, you'll need to provide "file"-related information manually. 
        // See the `form-data` README for more information about options: https://github.com/form-data/form-data 
        custom_file: {
            value:  fs.createReadStream('/dev/urandom'),
            options: {
            filename: 'topsecret.jpg',
            contentType: 'image/jpeg'
            }
        }
    }
} 

Current Behavior

TypeError: Cannot read property 'name' of undefined
    at FormData._getContentDisposition (/path-to-project/node_modules/request/node_modules/form-data/lib/form_data.js:217:43)
    at FormData._multiPartHeader (/path-to-project/node_modules/request/node_modules/form-data/lib/form_data.js:171:33)
    at FormData.append (/path-to-project/node_modules/request/node_modules/form-data/lib/form_data.js:64:21)
    at appendFormValue (/path-to-project/node_modules/request/request.js:327:21)
    at Request.init (/path-to-project/node_modules/request/request.js:338:11)
    at new Request (/path-to-project/node_modules/request/request.js:128:8)
    at request (/path-to-project/node_modules/request/index.js:54:10)
    at Function.post (/path-to-project/node_modules/request/index.js:62:12)
    at /path-to-project/publish.js:30:21
    at FSReqWrap.oncomplete (fs.js:123:15)

Your Environment

software	version
request	2.81.0, 2.78.0
node	6.10.1
npm	3.10.10
Operating System	MacOS

[matteodisabatino]

This happened me too with version 2.81.0; was my own fault because I was passing an undefined value in the formData. So, considering the code you've written, the problem may stand on the path of files, print them before call the request and check if they are right.

[ca0v]

Remove the "(ex)" and tsc exits with this error.

try {
} catch (ex) {
console.warn(``);
}

[jsdevtom]

Expanding on @matteodisabatino's comment, any property that is == undefined inside formData will cause this issue.