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I'm running geth on my local and I gave some options to connect with remix and testnet. $ geth —testnet —rpc —rpcapi “db, net, web3, personal” —rpccorsdomain “https://remix.ethereum.org” console I gave the -rpccorsdomain becuase the remix is on https. anyway, check the 'web3 prover' on Run tab in remix IDE.
This is what I did to solve the problem. Make sure that you have the full developer version of Xcode.app installed.
Hit Create in Remix and then switch over to the plugin again. There, you should see a pending transaction waiting to approved. Select the transaction, then click Submit. Transaction list: Approve/Reject screen: After submitting, it'll take a few seconds for the transaction to be mined.
I have disabled mixed content, my DNS, my VPN, etc and in any browser it shows up blank but has the warning at the bottom "You are using an https connection. Please switch to http if you are u...
3. If you use Google Chrome browser, you can connect the Remix Ethereum IDE to localhost with no issues. If you use Safari browser, you need to clear Safari cache. Only after that you would be able to connect the Remix Ethereum IDE to localhost with no issues. P.s. May be there are other things else which can help to resolve the issue.
The problem is that inside the require statement, you are performing an assignment instead of a comparision. require (msg.sender = doctor); This assigns doctor to msg.sender which is incorrect. Instead, you should use the equality comparison operator == to perform the comparision. And as an answer above suggested, use a revert string for better ...
// remix supports hardhat console.log; // 1st import as follows import "hardhat/console.sol"; // then to log use: console.log("log 1") Share Improve this answer
Long answer: Once a contract is deployed, it can never be modified nor deleted, the only thing you can modify is it's storage (variables that the contract uses) by calling it's defined functions, but you can't modify the logic behind it. If you messed up, you'll need to fix your contract, and re-deploy.
return blockhash(1); // fails in Remix JS VM. And found this answer on Ethereum StackExchange that links to a deleted issue. So if you need your contract to work in the Remix JS VM, I'd advise you to change the contract logic, so that it doesn't use the failing blockhash() function.
The CALLDATA field in Remix allows you to manually input any value of the data field in Ethereum transaction. The data field always starts with 0x, then contains 4 bytes (8 hex characters) of the function signature, and the rest of data is the function arguments. Function signature is calculated as first 4 bytes of keccak-256 hash of a string ...