Questions tagged [invalid-opcode]
Questions about and related to invalid opcode.
34
questions
2
votes
2
answers
231
views
What does FE stand for in "InvalidFEOpcode"?
I've seen the name InvalidFEOpcode used in client implementations, e.g. in REVM:
https://github.com/bluealloy/revm/blob/8206193e65ad199a1dde1e79e38bf9ffe38118c9/crates/interpreter/src/...
0
votes
1
answer
2k
views
Could not coalesce error. invalid opcode
I am trying to deploy a simple storage smart contract to Ganache using ethers. The contract is getting deployed but still I am getting this error and can not access the contract functions.
the error:
...
0
votes
1
answer
486
views
Invalid opcode in smart contract ( solidity ) while using ganache-cli
The inbox.sol file is -
//SPDX-License-Identifier: UNLICENSED
pragma solidity ^ 0.8.9;
contract Inbox {
string public message;
function myInbox(string memory initialMessage) public {
...
1
vote
1
answer
193
views
Warning! Error encountered during contract execution [invalid opcode: opcode 0x29 not defined]
hello every one hope you are doing fine.
i was trying to communicate with my smart contract which is deployed on the goeril test network but i m facing this error
Warning! Error encountered during ...
0
votes
2
answers
431
views
What is causing this invalid opcode error when I call the transfer function?
I am working through the process of developing a simple ERC-20 token to learn more about smart contract development. I am running into an issue on my coin sale contract, however. When I wish to end ...
1
vote
1
answer
605
views
another "invalid opcode" error
I am stuck on this little problem in my chat app smart contract(this is only the faulty piece of code)
contract ChatApp {
struct user{
bool acceptReq;
uint nreq;
...
2
votes
1
answer
96
views
Which fork implemented EIP-141? (invalid opcode)
EIP-141 https://eips.ethereum.org/EIPS/eip-141 was introduced in 2017, but I cannot find it in any of the meta lists for forks https://eips.ethereum.org/meta. Is there a fork under which it was ...
4
votes
1
answer
14k
views
I'm getting "invalid opcode: opcode 0xfe not defined", when trying to estimate the gas fees
I'm trying to estimate gas fees of a contract that I'm about to execute. My code is as follows.
import Web3 from "web3";
const web3 = new Web3();
const estimateGasLimit = async (
...
0
votes
0
answers
480
views
A lot of transactions stuck in local node pool
Geth node does not release the transactions to pool. Transactions are stuck. When I realized this problem I saw there weas a new version. I updated Geth from 1.9.12 to 1.9.17 but the problem was not ...
7
votes
2
answers
6k
views
How to handle enums as arguments for public functions?
Assume this simple contract:
pragma solidity 0.6.3;
contract InvalidOpcode {
enum Dir {UP, LEFT, DOWN, RIGHT}
Dir public currentDir;
function changeDir(Dir newDir) public {
...
0
votes
1
answer
141
views
REMIX debugger invalid opcode before JUMP
I am testing simple ERC20 token creation with the following in remix:
pragma solidity ^0.5.0;
import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v2.4.0/contracts/token/ERC20/ERC20....
2
votes
1
answer
3k
views
Is it normal to have Invalid opcode in a contract?
I was debugging my smart contract, while I did not encounter an invalid opcode error, I saw a lot of invalid opcodes in my deployed contract. Screenshot is from remix debugger. Is it normal to have ...
0
votes
0
answers
176
views
Invalid OPCode on passing address parameter through Java wrapper on smart contract using Ganache
I have been facing this issue for some time and I realized there must be a problem with Ganache or maybe someone has any idea why it doesn't work.
I have created a very simple contract as below, it ...
3
votes
2
answers
1k
views
Does a string message increase the gas usage of a `require` statement?
In solc 0.4.22 onward, it is possible to provide a string message containing details about the error that will be passed back to the caller (in require, assert and revert statements).
Does the gas ...
1
vote
3
answers
2k
views
Test array values if key/value exists - Does not work
I have a problem with the following contract.
When I deploy it, normally on calling the function addBalance() it should go into the false. But instead, it completely does not work and I get the ...
0
votes
1
answer
279
views
Solidity: VM Exception while processing transaction: invalid opcode - What happens?
If VM Exception while processing transaction: invalid opcode is thrown, does it have the same effect than revert?
0
votes
1
answer
990
views
When I use remix,there is a issue "Gas estimation failed,VM Exception while processing transaction: invalid opcode"
When I use function setDailyAssessmentInfo, error is raised:
Gas estimation errored with the following message (see below). The
transaction execution will likely fail. Do you want to force ...
3
votes
2
answers
688
views
Invalid opcode 0x3d
Trying to submit a transaction using remix on local javascript vm and it succeeds.
When I submit it on my real private network it fails with "invalid opcode 0x3d".. I can't seem to find 0x3d online......
0
votes
0
answers
283
views
Invalid op code from truffle console
I'm following this tutorial for a simple contract.
https://blog.zeppelin.solutions/the-hitchhikers-guide-to-smart-contracts-in-ethereum-848f08001f05
After running testrpc, compiled with truffle ...
0
votes
1
answer
1k
views
VM Exception while processing transaction: invalid opcode
I am trying to save string into a contract and hit this error.
My contract is
pragma solidity ^0.4.18;
contract MyRecord {
address owner;
address guest;
string note;
modifier ...
0
votes
1
answer
686
views
Invalid opcode on estimateGas
This is my contract
pragma solidity ^0.4.20;
contract Test {
struct TestStruct {
bytes32 name;
mapping(uint => address) tesMapping;
}
TestStruct[] public testStructs;
...
0
votes
2
answers
854
views
Truffle TestRPC Error: VM Exception while executing eth_call: invalid opcode
I've created a project from a Truffle Box. I have created my own contract for voting. At this point i want to be able to vote, which seems to be working, and return the total votes for all candidates, ...
3
votes
1
answer
330
views
error: invalid opcode using modifier
Im getting the following error when trying to run my js test file using truffle:
Error: VM Exception while executing eth_call: invalid opcode
The js test file is the following:
var DebitService = ...
1
vote
1
answer
213
views
Truffle. Type index error (Error: Error: VM Exception while executing eth_call: invalid opcode)
I have got error if i try call method getArrayData()
contract ManagerDb {
struct ManagerStruct {
bytes32 firstname;
bytes32 lastname;
bytes32 email;
uint index;
...
2
votes
1
answer
3k
views
What does this error "invalid opcode 0xfd" mean?
I found an error message, 'invalid opcode 0xfd'. What does this mean?
I googled, and found just one result here.
Quote: "I the invalid opcode 0xfd is never hit
(Some compilers encode safety ...
2
votes
1
answer
4k
views
Why is this test failing with an invalid opcode error at the transferFrom() call?
I get the following error:
1) Contract: Bencoin should send Bencoin correctly via transferFrom(address, address, uint256):
Uncaught Error: VM Exception ...
0
votes
2
answers
310
views
Error while creating the contract with ethereum in the initial tx
I get this error when I try to create the contract with some ETH, but if I just click create without sending ether the contract is correctly deployed.
2
votes
1
answer
864
views
Why does Solidity use an invalid jump instead of an invalid opcode for throws?
In Solidity's 0.4.9 release:
Internal exceptions are now thrown by using an invalid opcode (0xfe),
manual exceptions still use an invalid jump.
and
Code generator: Internal errors (array out ...
3
votes
2
answers
3k
views
invalid opcode for this.balance when contract balance > 0
I get an exception when I call getBalance in Remix and the contract balance is greater than 0 (ie. I sent some ether using the fallback function):
Exception during execution. (invalid opcode). ...
1
vote
1
answer
2k
views
(Solidity Browser) VM Exception: invalid opcode
I access the solidity browser from the following URL.
https://ethereum.github.io/browser-solidity/
There are one basic sample code and one "Ballot" sample code when the page is opened by default. I ...
3
votes
1
answer
6k
views
TestRPC undeterministically throw "invalid opcode"
We have contract test suites running against TestRPC, it could fail the first run and succeed the consecutive second run. What can cause this weird behavior and how can I fix it?
The CI histories:
...
4
votes
1
answer
2k
views
Difference between STOP and INVALID opcode
STOP halts execution and according to this mentions INVALID is used as an abort. Is the difference between these opcodes purely semantical?
5
votes
1
answer
16k
views
Getting 'invalid opcode' error
First of all, sorry for the code in Portuguese, this was a choice of the team and I had no saying on that.
I'm writing a Billet Manager, the code is as follows:
contract GerenciadorBoletos {
...
27
votes
4
answers
6k
views
Why does a Solidity throw consume all gas?
When you throw an exception, all gas is consumed. What is the rationale for this design decision?