uploading a file works, but diff does not

[mirino83]

• Extension Name: sftp
• Extension Version: 1.1.2
• OS Version: Windows_NT x64 10.0.16299
• VSCode version: 1.21.1

I can upload a file, but when I try to diff the same file, it shows an error

my SFTP config:

[
    {
        "context": "..\\jjkadernictvi-theme\\dist",
        "host": "waws-prod-am2-023.ftp.azurewebsites.windows.net",
        "port": 21,
        "username": "jjkadernictvi\\$jjkadernictvi",
        "password": "xxx",
        "protocol": "ftp",
        "remotePath": "/site/wwwroot/templates/shaper_helix3",
        "uploadOnSave": false,
        "syncMode": "update"
    }
]

sftp output:

[info]: config at d:\mirek\projekt\jjkadernictvi-theme\dist {"protocol":"ftp","host":"waws-prod-am2-023.ftp.azurewebsites.windows.net","port":21,"username":"jjkadernictvi\\$jjkadernictvi","password":"xxx","agent":null,"privateKeyPath":null,"passphrase":null,"interactiveAuth":false,"secure":false,"secureOptions":null,"passive":false,"remotePath":"/site/wwwroot/templates/shaper_helix3","uploadOnSave":false,"syncMode":"update","ignore":[".vscode",".git",".DS_Store"],"watcher":{"files":false,"autoUpload":false,"autoDelete":false},"concurrency":512,"context":"d:\\mirek\\projekt\\jjkadernictvi-theme\\dist"}

developer tools output:

ERR Cannot convert undefined or null to object: TypeError: Cannot convert undefined or null to object
    at Function.keys (<anonymous>)
    at toNumMode (C:\Users\mma\.vscode\extensions\liximomo.sftp-1.1.2\out\src\model\Fs\FTPFileSystem.js:14:28)
    at stats.map.stat (C:\Users\mma\.vscode\extensions\liximomo.sftp-1.1.2\out\src\model\Fs\FTPFileSystem.js:51:139)
    at Array.map (native)
    at ftp.list (C:\Users\mma\.vscode\extensions\liximomo.sftp-1.1.2\out\src\model\Fs\FTPFileSystem.js:51:40)
    at final (C:\Users\mma\.vscode\extensions\liximomo.sftp-1.1.2\node_modules\ftp\lib\connection.js:476:11)
    at Object.cb (C:\Users\mma\.vscode\extensions\liximomo.sftp-1.1.2\node_modules\ftp\lib\connection.js:513:11)
    at Parser.<anonymous> (C:\Users\mma\.vscode\extensions\liximomo.sftp-1.1.2\node_modules\ftp\lib\connection.js:117:20)
    at emitTwo (events.js:106:13)
    at Parser.emit (events.js:194:7)
    at Parser._write (C:\Users\mma\.vscode\extensions\liximomo.sftp-1.1.2\node_modules\ftp\lib\parser.js:59:10)
    at doWrite (_stream_writable.js:329:12)
    at writeOrBuffer (_stream_writable.js:315:5)
    at Parser.Writable.write (_stream_writable.js:241:11)
    at Socket.ondata (C:\Users\mma\.vscode\extensions\liximomo.sftp-1.1.2\node_modules\ftp\lib\connection.js:273:20)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:191:7)
    at readableAddChunk (_stream_readable.js:178:18)
    at Socket.Readable.push (_stream_readable.js:136:10)
    at TCP.onread (net.js:560:20)