hyperledger composer 测试 （附录）1.问题

1.问题：E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? 

原因：同时有两个apt在运行，需要删除锁定文件并重启服务

解决方案：

sudo rm /var/lib/dpkg/lock
sudo dpkg --configure -a
sudo rm /var/lib/apt/lists/lock 
sudo rm /var/cache/apt/archives/lock   
sudo apt update 
ps -A | grep apt 
kill -9 processnumber 
./prereqs-ubuntu.sh

2.问题：You don't seem to have a generator with the name “hyperledger-composer:businessnetwork” installed.

原因：缺少安装步骤，安装缺失

解决方案：

npm install -g composer-cli@0.20npm install -g composer-rest-server@0.20npm install -g generator-hyperledger-composer@0.20npm install -g yonpm install -g composer-playground@0.20

3.问题：npm install -g composer-playground@0.20

npm ERR! Unexpected end of JSON input while parsing near '...30","composer-connect'

npm ERR! Unexpected end of JSON input while parsing near '...30","composer-connect'

原因：先清除缓存，再重新安装 

解决方案：

npm cache clean --force
npm install -g composer-cli@0.20

4.问题：执行

composer network start --networkName tutorial-network --networkVersion 0.0.1 --networkAdmin admin --networkAdminEnrollSecret adminpw --card PeerAdmin@hlfv1 --file networkadmin.card

出错

? Starting business network definition. This may take a minute...
Error: Error trying to start business network. Error: No valid responses from any peers.
Response from attempted peer comms was an error: Error: failed to execute transaction a659d1031b007a09748bb9a2bac810d9dabb113bf00ad09bf8afa5d5ed18b93f: failed to register tutorial-network:0.0.1 as launching: chaincode tutorial-network:0.0.1 has already been launched
Command failed

原因：下载过多，安装超时，再次安装部分重复导致安装失败

解决方案：

cd ..
./stopFabric.sh 
./teardownFabric.sh 
./startFabric.sh 
./createPeerAdminCard.sh
cd ~/tutorial-network/
cd tutorial-network/
composer network install --card PeerAdmin@hlfv1 --archiveFile tutorial-network@0.0.1.bna
composer network start --networkName tutorial-network --networkVersion 0.0.1 --networkAdmin admin --networkAdminEnrollSecret adminpw --card PeerAdmin@hlfv1 --file networkadmin.card

5.