When I try to create a channel using Hyperledger Fabric, the request fails

Question

When I try to create a channel using Hyperledger Fabric, the request fails and returns the following error:

Client logs:

Error: got unexpected

Answer 1

UTC [orderer.common.broadcast] ProcessMessage -> WARN 009 [channel: orgchannel] Rejecting broadcast of config message from 172.20.20.22:45668 because of error: error validating channel creation transaction for new channel 'orgchannel', could not succesfully apply update to template configuration: error authorizing update: error validating DeltaSet: policy for [Group] /Channel/Application not satisfied: implicit policy evaluation failed - 0 sub-policies were satisfied, but this policy requires 1 of the 'Admins' sub-policies to be satisfied

If you are getting aforementioned error then check your configtx file and verify below mentioned attributes. Copy paste the below section and replace capabilities section.

Capabilities: # Channel capabilities apply to both the orderers and the peers and must be # supported by both. # Set the value of the capability to true to require it. Channel: &ChannelCapabilities # V1.4.3 for Channel is a catchall flag for behavior which has been # determined to be desired for all orderers and peers running at the v1.4.3 # level, but which would be incompatible with orderers and peers from # prior releases. # Prior to enabling V1.4.3 channel capabilities, ensure that all # orderers and peers on a channel are at v1.4.3 or later. V1_4_3: true # V1.3 for Channel enables the new non-backwards compatible # features and fixes of fabric v1.3 V1_3: false # V1.1 for Channel enables the new non-backwards compatible # features and fixes of fabric v1.1 V1_1: false

# Orderer capabilities apply only to the orderers, and may be safely
# used with prior release peers.
# Set the value of the capability to true to require it.
Orderer: &OrdererCapabilities
    # V1.4.2 for Orderer is a catchall flag for behavior which has been
    # determined to be desired for all orderers running at the v1.4.2
    # level, but which would be incompatible with orderers from prior releases.
    # Prior to enabling V1.4.2 orderer capabilities, ensure that all
    # orderers on a channel are at v1.4.2 or later.
    V1_4_2: true
    # V1.1 for Orderer enables the new non-backwards compatible
    # features and fixes of fabric v1.1
    V1_1: false

# Application capabilities apply only to the peer network, and may be safely
# used with prior release orderers.
# Set the value of the capability to true to require it.
Application: &ApplicationCapabilities
    # V1.4.2 for Application enables the new non-backwards compatible
    # features and fixes of fabric v1.4.2.
    V1_4_2: true
    # V1.3 for Application enables the new non-backwards compatible
    # features and fixes of fabric v1.3.
    V1_3: false
    # V1.2 for Application enables the new non-backwards compatible
    # features and fixes of fabric v1.2 (note, this need not be set if
    # later version capabilities are set)
    V1_2: false
    # V1.1 for Application enables the new non-backwards compatible
    # features and fixes of fabric v1.1 (note, this need not be set if
    # later version capabilities are set).
    V1_1: false

Also check your channel name

export SYS_CHANNEL=orgchannel #should be your own system channel name export CHANNEL_NAME=org1orgchannel #should be your own system channel name export CHANNEL_ID=org1orgchannel #should be your own system channel name

Also remember SYS_CHANNEL value should be different from CHANNEL_NAME. CHANNEL_NAME and CHANNEL_ID should be same.

If still getting issue mail me on actachieverepeat@gmail.com.