Risoluzione dei problemi

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MetaMask states 'Balance may be outdated', displays in orange, or ETH not added to balance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...

Cosa fare se il saldo dei token non è corretto

I token non vengono visualizzati affatto?

Why Infura cannot serve certain areas

By default, MetaMask accesses the blockchain via Infura, which is unavailable to persons in ...