## Indexer: Expected string or bytes-like object

Hello everyone, I’m trying to use the indexer for the first time, leaning on pure stake as a node. Whenever I try to get information from the indexer I always get the error like: expected string or bytes-like object. Would someone be able to explain to me why? Yet everything seems to me to be done.

## Overspend account

Can you clarify in more detail, both how to use the goal network status command and how to synchronize local algod instance? Thank you.

I imported my account and set up testnet, but I always get the same overspend error. My code is this:

```python
import json
import base64
from algosdk import account, mnemonic
from algosdk.v2client import algod
from algosdk.future.transaction import PaymentTxn

def generate_algorand_keypair():
    # Your implementation here
```

Hello everyone, I am trying to develop my first transaction on the Algorand blockchain. I created an account with the following address: 3YQ4XKUUELUN64C3PSV5BIF42BWOQ6V76X55IYHIJDOM6DRBO6A2A2BFVU. I have funded it and I can find the financing transaction and the account balance processed by Algorand.

## Error: Socket Exception while trying to access kmd

Right now my node is installed via sandbox and with the curl command 127.0.0.1:4002/swagger.json I get a response like:

```json
{
  "consumes": [
    "application/json"
  ],
  "produces": [
    "application/json"
  ],
  "schemes": [
    "http"
  ],
  "swagger": "2.0",
  "Info": {
    "description": "..."
  }
}
```

How can I implement this logic in the wallet itself, to be able to offer a multi-wallet functionality and therefore derive multiple addresses from the same mnemonic without going through kmd?

Goodmorning everyone, I am developing an Algorand Wallet on a Flutter mobile application in Dart. Right now I’m trying to connect to the kmd service of a node in order to get more addresses for a wallet from the same seedphrase. The node has started and kmd also but when I try to use the algorithm.

## Error while installing pip3 install -r requirements.txt

I am trying to follow the tutorial I found on Developer Algorand but when I try to install the python development environment before I can run the example I get this error. Everything is installed correctly until at this point it finds problems with these packages.

Building wheel for pyteal...

## Connection refused, errno = 111, address = localhost, port = 57838

My application is a wallet, everything works correctly and I have already developed the secure local archiving of the seedphrase. But what I’m trying to do now is to develop a feature that allows wallet users to create a multi-wallet wallet, with different addresses but linked to the same seedphrase.

Sorry for the duplication, I was looking for an answer… My intent is to derive multiple addresses from the same seedphrase, so kmd seemed the most suitable way to do this, am I wrong? Where can I also change the port number to use? This is the code of the CreateWalletRequestBuilder class:

```python
class CreateWalletRequestBuilder:
    # Your implementation here
```

## Kmd error: Connection refused, errno = 111, address = 127.0.0.1

Hello, I am developing an app using Flutter in Dart with this external Algorand API: [GitHub - RootSoft/algorand-dart](https://github.com/RootSoft/algorand-dart). My application is not directly connected to a node and when I try to use a kmd method to derive...

## How to connect a node to a mobile application?

Hello everyone, I am developing an application on Flutter in Dart, using an external API for Algorand. I am trying to use kmd to get new addresses but every time I try I get connection errors like: SocketException: OS error: connection refused.

Hi, this is the API I am using: [GitHub - RootSoft/algorand-dart](https://github.com/RootSoft/algorand-dart). The application I am developing on Android Studio with Flutter in Dart, no I am not currently using any node for testing. I usually use Docker sandbox.

Hello everyone, I am developing an application on Flutter in Dart on Android Studio, using an external API with all the package of Algorand and kmd. When I use the kmd method to create a new wallet I get this error: DioError [DioErrorType.other]: SocketException: OS Error: Connection refused.