Dépannage
Cannot load tokens due to error message about token being already added
If you get an error about a token having already been added when trying to add a token, you ...
'Deceptive site ahead' when trying to connect to a site
This warning message appears when you attempt to connect your wallet to a site that may be a...
Error: Cannot read property 'balance' of undefined
You may encounter this error message when you open MetaMask:
Error: [ethjs-query] while formatting outputs from RPC (transaction underpriced error)
The information in this article is applicable to Ethereum mainnet *and *other networks, such...
Error: Exception is thrown in contract code/in contract execution
Generally speaking, "Exception is thrown in contract code" means exactly what it says — some...
Error: Invalid or missing bridge url parameter value
Sometimes, MetaMask will present an error message, "Error
Error 'No chain ID defined'
If you are using the Ethereum Mainnet, try toggling networks: switch from Ethereum mainnet t...
Error: number-to-bn while converting number '0xNaN' to BN.js instance, error: invalid number value. Value must be an integer, hex string, BN or BigNumber instance. Note, decimals are not supported
The following error message can occur when performing a transaction in MetaMask:
Error 'Unable to find conversion rate'
The 'Unable to find conversion rate' or 'unable to load balance' error message can be prompt...
Error: 'Unable to locate this TxnHash'
This error arises when a transaction is stuck locally, and has not been properly submitted t...
Error: undefined is not an object
The following error message can occur in MetaMask:
Having issues with your Ledger
If you are having issues with your Ledger, here are some common fixes:
How to fix 'insufficient funds' error or greyed-out confirm button
Why I am getting an "insufficient funds" error?
MetaMask is unable to connect to the blockchain host
If you see the following pop-up in MetaMask:
MetaMask states 'Balance may be outdated', displays in orange, or ETH not added to balance
This article applies to MetaMask Extension.
My transaction is successful but the amount I received is far lower than the amount confirmed
If you have completed a transaction successfully but you've noticed a discrepancy between th...
There is an unauthorized transaction on my account
If you see a transaction on your account that you do not recognize at first, one of these si...
Unlock error: 'invalid password'
Depending on your browser performance, there might be a little lag when writing the MetaMask...
User Guide: Troubleshooting
If MetaMask isn't working the way you expected, there are some steps you can take on your ow...
Que faire lorsque votre solde de jetons est incorrect
Les jetons n'apparaissent pas du tout ?
Why Infura cannot serve certain areas
By default, MetaMask accesses the blockchain via Infura, which is unavailable to persons in ...