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1 vote
1 answer
47 views

I got this error while building a blockchain (building a local blockchain)

when i run node template without --ws external its producing blocks but when i run with --ws external its giving me error please help me fix this im new to substrate.
3 votes
1 answer
49 views

How to add vector fields in the block header?

I want to add a vector fields in the block header of substrate chain. Is this possible? If yes, How can i do that? Do we have any reference code for it? Thanks in advance
1 vote
1 answer
66 views

while building an application logic (use macros in a custom pallet) [duplicate]

[][in build an application logic im facing this error im new to substrate please help me fix this.]
0 votes
0 answers
36 views

Build a blockchain

I'm following substrate documentation in that build a blockchain tutorial while following the monitoring node metrics tutorial. I got stuck while installing prometheus on my ec2 instance is there any ...