barcoin/src% ./barcoin -testnet (add the d on Linux, ./barcoind)
Assertion failed: (block.hashMerkleRoot == uint256("0x")), function LoadBlockIndex, file main.cpp, line 2031.
zsh: abort ./barcoin
~./barcoin.
/Users/username/Library/Application Support/barcoin
c:\Users\username\AppData\Roaming\barcoin