按着这个教程撘私有链3 }% W+ `; m* F, a2 w( `7 P
结果第一步就报错啦
! N3 }% [& Z( ^9 B* Y+ o这是. _% n4 p. L0 Q$ g% W; g
genesis.json:
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1. {
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2.   "coinbase"   : "0x0000000000000000000000000000000000000000",
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3.   "difficulty" : "0x400",! X! p4 X, r+ r3 d
   
4.   "extraData"  : "0x0",+ a, d- g; m0 I& x1 c7 }; s
   
5.   "gasLimit"   : "0x2fefd8",
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6.   "nonce"      : "0xdeadbeefdeadbeef",1 g( k* R; T7 G+ q4 q
   
7.   "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
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8.   "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",1 c% c& c+ ?8 v4 ~
   
9.   "timestamp"  : "0x00",
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10.   "alloc"      : {}
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11. }

复制代码

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  o+ H9 v2 U' l4 R8 O  m然而启动的时候：0 c$ z5 l1 l- ~
wangyideMacBook-Pro:eth vincent$  geth --datadir data0 init genesis.json/ U, R& I3 b/ Z' A$ z+ ]/ f, e
Fatal: invalid genesis file: json: cannot unmarshal hex string of odd length into Go struct field Genesis.extraData of type hexutil.Bytes( D' `9 A7 O. C  G# J
wangyideMacBook-Pro:eth vincent$ , C0 R0 n' `( m1 j! P
哪位大神能帮帮我？