创建第一个Fabric创世区块，遇坑Failed to generate orderer genesis block

按上篇步骤到了创建创世区块了，然后失败了，报错如下

/Users/yiyunyue/fabric/demo1/fabric-samples/first-network/../bin/configtxgen

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#########  Generating Orderer Genesis block ##############

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+ configtxgen -profile TwoOrgsOrdererGenesis -outputBlock ./channel-artifacts/genesis.block

2018-10-31 15:59:56.607 CST [common/configtx/tool] main -> INFO 001 Loading configuration

2018-10-31 15:59:56.637 CST [common/configtx/tool/localconfig] Load -> CRIT 002 Error unmarshaling config into struct:  17 error(s) decoding:

 

* '' has invalid keys: capabilities, channel

* 'Application' has invalid keys: Capabilities, Policies

* 'Orderer' has invalid keys: Capabilities, Policies

* 'Organizations[0]' has invalid keys: Policies

* 'Organizations[1]' has invalid keys: Policies

* 'Organizations[2]' has invalid keys: Policies

* 'Organizations[3]' has invalid keys: MSPType, Policies

* 'Profiles[TwoOrgsChannel].Application' has invalid keys: Capabilities, Policies

* 'Profiles[TwoOrgsChannel].Application.Organizations[0]' has invalid keys: Policies

* 'Profiles[TwoOrgsChannel].Application.Organiz