Questions tagged [rococo]

Questions about the Rococo test network.

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2 answers
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Barrier error during initiating HRMP channel with Rockmine on Rococo

I want to open HRMP channel with Rockmine on rococo. But I got the Barrier error and can't understand what is wrong with my request. This is my encoded call data ...
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1 vote
1 answer
23 views

Migrating from short-term to long-term slot on Rococo

We had a temporary slot with para_id 3026 previously and wanted to request for long-term slot (now that we have launched on Kusama) with the matching 2119. We thought the procedure is to: generate ...
  • 45
2 votes
2 answers
44 views

Polkadot vs Rococo runtimes

I noticed various projects having multiple runtimes for Kusama, Polkadot and maybe a local-testnet. This makes sense as they can have different set of features. In my case I only want to test on ...
  • 431
0 votes
0 answers
17 views

What are some common reasons that a blockchain stops producing blocks? [duplicate]

I am trying to familiarize myself with common reasons why a parachain could stop producing blocks. What some common reasons that a parachain stops producing blocks?
  • 431
0 votes
1 answer
35 views

Do I need the chain specification file of Rococco testnet to run my local parachain node?

I followed Connect a local parachain tutorial and successfully run my local parachain node with this command: ./target/release/parachain-collator \ --alice \ --collator \ --force-authoring \ --chain ...
  • 3
0 votes
1 answer
50 views

How to start a Parachain on Rococo Testnet

I would like have a step by step process to get block production started with a parachain on Rococo testnet.
1 vote
1 answer
37 views

Error with block built on XXX: Import failed: Unexpected epoch change

I'm trying to prepare a local parachain testnet. However, when I run two nodes at the same time, although the two nodes recognise each other no new blocks are added and I get this error: Error with ...
0 votes
2 answers
53 views

automating the launch of bootnodes

We want to automate the launch of our bootnodes for our parachain. We generated a spec file with an IP address as well as an identity that are repeatable. We used the --node-key to get a repeatable ...
0 votes
1 answer
27 views

Error requesting Rococo Parachain Slot

When I going to Request your parachain slot but every time I want to press sign transaction the button, it shows me this error system.ExtrinsicFailed BadOrigin . whats the problem ? how can i solve ...
  • 115
0 votes
1 answer
146 views

While running collator with our paraId having error

We were trying to run collator with our paraID registered on polkadot. We are able to connect with the same process on rococo test network. But while we are connecting with polkadot. It's throwing ...
0 votes
0 answers
32 views

GrandpaJustification signature verification is failing with Rococo

a couple of days ago I realized that the logic I used for verifying a GrandpaJustification was not working anymore on Rococo (on Polkadot it does). Specifically, the signature of all precommits is ...
1 vote
0 answers
32 views

On which public testnet can I deploy an ink! smart contract for testing [duplicate]

In the deprecated Canvas repo the Rococo Canvas testnet is mentioned, however, I can't find any working rpc url. I can't connect to the RPC linked there, so I'd assume it's deprecated as well. On ...
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1 vote
0 answers
16 views

Has anyone made a barebones rococo relay chain?

I am curious if anyone made a rococo relay chain using node-template? Similar to this (https://github.com/buraktabn/relay-chain) but using rococo instead of kusama.
3 votes
2 answers
160 views

Sudo option is missing

I just clone the Polkadot repo v0.9.20 and build. When I run the chain sudo option is not showing in developer section. Running chain on 127.0.0.1:9944. Can anyone please tell why this thing happen? ...
1 vote
0 answers
22 views

Rococo Status & Issues

lately Rococo has been producing blocks very slowly. Not sure if this is the best place to ask, but where can we find more information about this? Or where to ask about this if this isn't the correct ...
  • 133
0 votes
1 answer
37 views

Possibility of Deploying Substrate Kitties to Testnet

I've just completed the Substrate Kitties tutorial. Since I've created my own chain in my own local environment, I was wondering if it's possible for me to deploy my Substrate Kitties chain on to the ...
  • 1
0 votes
2 answers
29 views

How do I access my parathread?

I have created a parathread on Rococo here, it is number 3020. It doesn't have a link or name to click to the right of it like the ones at the top do. Clicking those brings me to the page where I can ...
  • 3
3 votes
1 answer
93 views

Wider Parachain Testing: Westend or Rococo?

I'm planning out next tier of testing a parachain after local testing. There is both Westend and Rococo testnets, but I'm not 100% sure what the differences are between the two of them. Which one (or ...
  • 33
3 votes
1 answer
90 views

Is there a link or guide on how to get a Sovereign Account Address?

I'm currently working on opening an HRMP Channel on Rococo with another parachain. In order to do this, I need to send an XCM to the relay chain. One of the items within this message requires a ...
4 votes
1 answer
47 views

Database corruption on syncing parachain to rococo

Syncing parachain to rococo generates the following error: 2022-04-20 16:47:13 [Relaychain] DB corrupted: Corruption: Corrupted compressed block contents: Snappy. Repair will be triggered on next ...
  • 118
2 votes
1 answer
59 views

Bootnodes for Rococo

After completing the cumulus tutorial, I'm trying to connect the parachain to Rococo. I have two questions Do we need to run our own validator nodes for Rococo? (my understanding is that its not ...
  • 118
0 votes
2 answers
41 views

Parachain config for Rococo public test network

How to config a locally tested parachain to connect it to the Rococo public test-network? I mean on the startup phase (before the Rococo Slot Request Form), following the Cumulus tutorial: after ...
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1 vote
1 answer
67 views

How to test parachain + Slot Auction + Crowdloan in Rococo chain?

My parachain's unit tests can run no problem. I am aware of "Rococo Slot Request" from https://docs.substrate.io/tutorials/v3/cumulus/rococo/#request-your-parachain-slot and in this section ...
  • 737
0 votes
1 answer
15 views

Do I need to bump the versions of a new release manually before making a runtime upgrade from a Polkadot release-v0.9.xx?

I am running a rococo fork and used Polkadot [release-v0.9.18][1] to make a runtime upgrade. I upgraded the chain initially, but didn’t see a difference in the chain. So then I realised I need to bump ...
0 votes
1 answer
34 views

Upgrade Rococo fork, error would exhaust block limits (no pallet_scheduler)

We're trying to upload a Rococo fork, it seems that Rococo doesn't have pallet_scheduler out the box, so we don't have that option. sudo.sudo 1010: Invalid transaction: Transaction would exhaust the ...
2 votes
2 answers
34 views

Can we use same WASM and State files for registering parathread on Kusama, which we used for Rococo?

We generated WASM and State files to submit on Rococo. It went fine and we get successfully registered as parachain on Rococo. Can we use the same WASM and State files for registering parathread on ...
4 votes
1 answer
45 views

Provided next available para id is already registered

Background - I have relay chain setup that is able to connect to local rococo testnet, and I am trying to obtain and register unique para_id on Rococo testnet via the polkadotjs app. I have provided ...
3 votes
1 answer
59 views

Rococo onchain parachain registration not working

I'm trying to onboard a team to paraID2000 on Rococo, but I'm not being able to do so successfully. The ID was previously being used by another team that attempted to upgrade their chain and bricked ...
4 votes
2 answers
41 views

What is required to integrate a Parachain into Kusama?

I just integrated our parachain into Rococo. Our testing is completed now we are ready to integrate into Kusama. I just want to understand what is the process for Kusama integration. Because Rococo ...
3 votes
1 answer
69 views

Is Kusama still running on 0.9.17?

Rococo is running on 0.9.18 but from Polkadot js UI, it looks like Kusama is still running on 0.9.17. I am preparing for Kusama deployment. Can someone please point me to the right JSON file for ...
5 votes
1 answer
49 views

Unstuck non-upgraded Parachain

A parachain had an upgrade schedule on a relay chain, but the upgrade did not go through, forcing the parachain to stop producing blocks. I tried forcing a new validationCode using SUDO, but that did ...
3 votes
1 answer
17 views

Deposit on registrar.forceRegister(who,deposit,id,genesisHead,validationCode)?

I'm trying to onboard several teams to the Rococo testnet with the objective that they can then control the parachain. For that, I'm thinking of using the SUDO account and calling registrar....
7 votes
2 answers
101 views

Where to request a temporary parachain slot on Rococo?

After following parachain guides and setting up a parachain node, we'd like to initiate a temporary slot on rococo testnet for our parachain (ParaId 2004). According to the document, we should request ...
  • 195
7 votes
1 answer
74 views

Why is the Rococo `maxCodeSize` too small to do adequate incremental runtime upgrades? [closed]

If we want to connect a parachain to Rococo's 'rococo-local' relay chain we follow this Cumulus tutorial using polkadot-launch. Part of the pre-launch steps mentioned here is to minimize your runtime ...
  • 1,290
0 votes
1 answer
63 views

How many collators of a registered parachain must be synchronised with the Rococo relay chain for that parachain to generate and finalize blocks?

I want to determine the minimum amount of collators that a specific parachain that is registered on the Rococo network must have running in order for them to generate and finalize blocks once they ...
  • 1,290
8 votes
1 answer
58 views

How to reset a parachain with a new genesis on rococo?

I want to reset a parachain currently active on the rococo testnet. There is documentation on how to register a new parachain. But what do I need to do in order to restart an existing parachain? I ...
2 votes
1 answer
62 views

`Corrupted state at` after runtime upgrade to `0.9.16` on `rococo-local` chain

I'm facing some strange logs when doing a runtime upgrade a Polkadot rococo-local relay chain to 0.9.16 from 0.9.15. Hoping someone can help me debug them. Using Polkadot's release-v0.9.15 and release-...
1 vote
1 answer
40 views

Can parathread produce blocks?

I followed the Cumulus tutorials and registered a parathread in Rococo chain but my chain doesn't produce any block. As far as I know, parathread functions the same as a parachain you have to bid for ...
4 votes
1 answer
143 views

How do you add new validators for your blockchain testnet?

I have a launched a Rococo staging style relay chain testnet. I am currently the sudo and I would like to go through the process of inviting other people to become validators. What steps do I need to ...
7 votes
2 answers
135 views

How do I connect my parachain to Rococo?

I have completed the Cumulus tutorial and tested my parachain on rococo-local to work as expected. I would like to connect to the public testnet, but I don't have sudo capabilities to add my parachain....
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