![ERROR: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received undefined - Questions - n8n ERROR: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received undefined - Questions - n8n](https://community.n8n.io/uploads/default/original/2X/1/18412606fb3fee1d7766fd9c46d5c01b92c4c2aa.png)
ERROR: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received undefined - Questions - n8n
![Convert ArrayBuffer Response type to String in Javascript/jQuery – Microsoft Technologies PROGRAMMING EXPERIENCE Convert ArrayBuffer Response type to String in Javascript/jQuery – Microsoft Technologies PROGRAMMING EXPERIENCE](https://sandippatilprogrammer.files.wordpress.com/2016/10/dd2.png)
Convert ArrayBuffer Response type to String in Javascript/jQuery – Microsoft Technologies PROGRAMMING EXPERIENCE
![First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object · Issue #405 · brocaar/chirpstack-application-server · GitHub First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object · Issue #405 · brocaar/chirpstack-application-server · GitHub](https://user-images.githubusercontent.com/11586458/71455089-d9df5c00-27d6-11ea-9a39-0bcc61833676.png)