Deploying simple Contract to geth

I’m getting an error when I try to deploy a contract (via serve):

Module build failed: Error
      at DeployError.ExtendableError 

Or when I try truffle deploy:

Checking sources...
Compiling SimpleStorage.sol...
Collecting dependencies...
Error deploying SimpleStorage:

undefined

Deploy failed. See above.

This worked before on testrpc without problems. But my guess is that I need to authenticate, but how?.

I’ve not configured much other than add an account on the command line, and one in the geth javascript console. (Which created 2 different/seperate accounts?) But never logged in, or configured anything to use them. But I can also not find anything about this in the docs

It seems it’s just assuming testrpc where everything just magically works…

Is it even possible to deploy contracts on a live Node from truffle, because I would first need to unlock an account from whence I deploy the contract no?

I’ve been searching for hours now for anything that would allow me to tell truffle to login, and deploy the contracts on geth like it does in testrpc.

[maxweng]

And I’m sure my geth node is running fine, as I can log in to it with geth attach, and successfully run some web3 commands.

[maxweng]

I’ve upgraded to 2.0, and managed to migrate and deploy on Testrpc without problem. Then failed miserably in trying to do the same thing on my local geth node. The error msgs are:

Error encountered, bailing. Network state unknown. Review successful transactions manually. invalid address.