按着这个教程撘私有链! C7 B' w, a  F$ B, e1 ~# }/ q* J
结果第一步就报错啦
/ a  ^  [/ i$ }* O( T  m6 a这是
! u- s1 w4 X6 y, v4 E9 V6 }3 lgenesis.json:
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1. {9 ~0 Z: E/ k  [8 D1 o
   
2.   "coinbase"   : "0x0000000000000000000000000000000000000000",& W5 B/ U7 {1 K& t7 l0 F
   
3.   "difficulty" : "0x400",' f* K2 f+ o( @) S2 }
   
4.   "extraData"  : "0x0",; {& ~6 r, \9 `  ]- p: X/ I: U
   
5.   "gasLimit"   : "0x2fefd8",
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6.   "nonce"      : "0xdeadbeefdeadbeef",
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7.   "mixhash"    : "0x0000000000000000000000000000000000000000000000000000000000000000",
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8.   "parentHash" : "0x0000000000000000000000000000000000000000000000000000000000000000",
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9.   "timestamp"  : "0x00",7 c+ ^7 ~/ t0 r
   
10.   "alloc"      : {}
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11. }

复制代码

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& R2 a3 ^! e) \( v然而启动的时候：
1 u% q, ~  Y8 ~5 Q0 S0 m" x0 _% _2 GwangyideMacBook-Pro:eth vincent$  geth --datadir data0 init genesis.json
; U4 c4 i6 X" i1 ?; o6 xFatal: invalid genesis file: json: cannot unmarshal hex string of odd length into Go struct field Genesis.extraData of type hexutil.Bytes  ~* W. a! W- T1 [
wangyideMacBook-Pro:eth vincent$ 0 j- `8 o0 H- \+ e- Z" L" X
哪位大神能帮帮我？