che-core | High performance , open source developer environments | Build Tool library

When connecting to a remote network via a hosted node such as Infura, the Accounts container will be empty. Before you can perform any transactions you must add a local account to Brownie. Looks like you are not on development environment.

Brownie documentation will guide you how to set up accounts

In order to interact with an ERC20 token, you have to create an instance of it from the desired contract. You would need to import ERC20 to your nfts contracts, and then create an ERC20 token instance pointing to your token. It would be something like this:

Your contract and javascript code is correct. Error

Debugging with truffle is pain in ass. Specially if you have no previous experience of cli-debugging Although here is their complete guide. This includes everything setting breakpoints, displaying variables, execute and print expressions etc

As a rule of thumb if you are working on a project that involves writing single or two smart contract you may wanna use remix IDE. It is very user friendly and has everything. You can code deploy test debug your smart contracts with great ease.

This is an issue from a new edition of web3.py.

You need to add gasPrice to your transaction, like so:

There are two main ways to interact with a smart contract. A call (read-only, free) and a transaction (read-write, requires gas fees).

Your react code uses the .call() method for addTask() and changeTaskState(), which doesn't allow writing in the contract storage.

Since you're working with MetaMask, you should use the Ethereum Provider API and submit a request to MM that will ask the user to confirm the transaction.

So instead of the props.contract.methods.addTask(content).call() you can get the contents of the data field and then generate the transaction request.

This might have to do with you not using Generics with your java Collections

Obs2: After searching for spring boot logs, I believe CacheEventListener is been binded to the cache before spring boot finishes loading. Not sure if this is the problem.

This hints at your issue, you can't inject spring beans into non-spring managed object instances. You can use a simple class to give you static access to the spring context to load a bean described here.

This error was due to different cxf jar versions being used This was solved by matching all the cxf versions in the pom.xml. of current project and all the projects being imported.