Embark demo not working with latest version of Metamask

[eschnou]

Problem: When submitting the transaction (set value) in the embark demo example, metamask returns an 'invalid sender' error. This is due to metamask enforcing EIP 155 for replay protection and geth not being properly configured to support it.
MetaMask/metamask-extension#1444

Solution: the channelId must be added in the config section of the genesis configuration. It should match the networkId (which is 12301 by default).

This change solved this issue for me:

{
    "config": {
      "chainId": 12301,
      "homesteadBlock": 1
    },
   ....
}

Versions:
metamask 3.11.2
geth 1.7.2-stable
embark 2.5.2

[ConnorBP]

Setting the chainId to 12301 in the genesis conf does not work for me :/
and my blockchain is definitely running with that id...

metamask 4.1.3
geth 1.8.1-stable
Embark 2.6.7

Transactions on metamask fail every time. Maybe i should try mist?

{
    "config": {
      "chainId": 12301,
      "homesteadBlock": 1
    },
    "nonce": "0x0000000000000042",
    "difficulty": "0x0",
    "alloc": {
        "0x3333333333333333333333333333333333333333": {"balance": "15000000000000000000"}
    },
    "mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "coinbase": "0x3333333333333333333333333333333333333333",
    "timestamp": "0x00",
    "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
    "extraData": "0x",
    "gasLimit": "0x4c4b40"
}

[RamiroMoreira]

i have the same issue, and that solution does not work for me neither

[iurimatias]

@ConnorBP @RamiroMoreira are you still experiencing this issue on embark 3.0 ?

[RamiroMoreira]

@iurimatias yes, i just test it in Embark 3.0.1 and i had the same issue

[iurimatias]

@RamiroMoreira just to confirm, are you connecting metamask to the embark node?

[RamiroMoreira]

@iurimatias yes, maybe i'm doing something wrong, i'm runing my own dapp, it's not the demo example.

[iurimatias]

@RamiroMoreira are you getting in a console an error like " Error: No "from" address specified in neither the given options, nor the default options." ?

[iurimatias]

@eschnou @ConnorBP @RamiroMoreira This should be all fixed in the latest release 3.0.3 (relased just now). note that you might need to reset the account in metamask with "settings->reset account".