digibyte 9.x update issue can any one help me

[SoloBoozt]

[2026-07-12 20:04:01.0880] [E] [digibyte] Daemon reports: Object reference not set to an instance of an object.
[2026-07-12 20:04:01.0880] [I] [digibyte] Waiting for daemons to come online ...
[2026-07-12 20:03:21.0994] [E] [digibyte] Daemon reports: Object reference not set to an instance of an object.^C[2026-07-12 20:04:07.2548] [I] [Lifetime] Application is shutting down...
[2026-07-12 20:04:07.3213] [W] [bitcoincash] Unable to update job. Daemon responded with: Cancelled Code -500
[2026-07-12 20:04:07.3286] [E] [digibyte] System.OperationCanceledException: The operation was canceled. System.OperationCanceledException: The operation was canceled.
at System.Threading.PeriodicTimer.State.Signal(Boolean stopping, CancellationToken cancellationToken)
at System.Threading.CancellationTokenSource.ExecuteCallbackHandlers(Boolean throwOnFirstException)
at Microsoft.Extensions.Hosting.BackgroundService.StopAsync(CancellationToken cancellationToken)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
at Microsoft.Extensions.Hosting.BackgroundService.StopAsync(CancellationToken cancellationToken)
at Microsoft.Extensions.Hosting.Internal.Host.ForeachService[T](IEnumerable1 services, CancellationToken token, Boolean concurrent, Boolean abortOnFirstException, List1 exceptions, Func3 operation) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext() at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining) at System.Threading.Tasks.Task.RunContinuations(Object continuationObject) at System.Threading.Tasks.Task1.TrySetResult(TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.SetExistingTaskResult(Task1 task, TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
at Microsoft.AspNetCore.Hosting.GenericWebHostService.StopAsync(CancellationToken cancellationToken)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Threading.Tasks.Task1.TrySetResult(TResult result) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.SetExistingTaskResult(Task1 task, TResult result) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult() at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerImpl.StopAsync(CancellationToken cancellationToken) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext() at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining) at System.Threading.Tasks.Task.RunContinuations(Object continuationObject) at System.Threading.Tasks.Task1.TrySetResult(TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.SetExistingTaskResult(Task1 task, TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure.TransportManager.StopTransportsAsync(List1 transportsToStop, CancellationToken cancellationToken) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext() at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining) at System.Threading.Tasks.Task.RunContinuations(Object continuationObject) at System.Threading.Tasks.Task.TrySetResult() at System.Threading.Tasks.Task.WhenAllPromise.Invoke(Task completedTask) at System.Threading.Tasks.Task.RunContinuations(Object continuationObject) at System.Threading.Tasks.Task1.TrySetResult(TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.SetExistingTaskResult(Task1 task, TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure.TransportManager.ActiveTransport.UnbindAsync(CancellationToken cancellationToken)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecuteFromThreadPool(Thread threadPoolThread)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()
--- End of stack trace from previous location ---
at System.Threading.PeriodicTimer.State.System.Threading.Tasks.Sources.IValueTaskSource<System.Boolean>.GetResult(Int16 token)
at Miningcore.Blockchain.JobManagerBase1.StartDaemonAsync(CancellationToken ct) in /Miningcore/Miningcore/src/Miningcore/Blockchain/JobManagerBase.cs:line 48 at Miningcore.Blockchain.JobManagerBase1.StartAsync(CancellationToken ct) in /Miningcore/Miningcore/src/Miningcore/Blockchain/JobManagerBase.cs:line 111
at Miningcore.Blockchain.Bitcoin.BitcoinPool.SetupJobManager(CancellationToken ct) in /Miningcore/Miningcore/src/Miningcore/Blockchain/Bitcoin/BitcoinPool.cs:line 477
at Miningcore.Mining.PoolBase.RunAsync(CancellationToken ct) in /Miningcore/Miningcore/src/Miningcore/Mining/PoolBase.cs:line 422 at System.Threading.PeriodicTimer.State.Signal(Boolean stopping, CancellationToken cancellationToken)
at System.Threading.CancellationTokenSource.ExecuteCallbackHandlers(Boolean throwOnFirstException)
at Microsoft.Extensions.Hosting.BackgroundService.StopAsync(CancellationToken cancellationToken)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
at Microsoft.Extensions.Hosting.BackgroundService.StopAsync(CancellationToken cancellationToken)
at Microsoft.Extensions.Hosting.Internal.Host.ForeachService[T](IEnumerable1 services, CancellationToken token, Boolean concurrent, Boolean abortOnFirstException, List1 exceptions, Func3 operation) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext() at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining) at System.Threading.Tasks.Task.RunContinuations(Object continuationObject) at System.Threading.Tasks.Task1.TrySetResult(TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.SetExistingTaskResult(Task1 task, TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
at Microsoft.AspNetCore.Hosting.GenericWebHostService.StopAsync(CancellationToken cancellationToken)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext()
at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining)
at System.Threading.Tasks.Task.RunContinuations(Object continuationObject)
at System.Threading.Tasks.Task1.TrySetResult(TResult result) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.SetExistingTaskResult(Task1 task, TResult result) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult() at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerImpl.StopAsync(CancellationToken cancellationToken) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext() at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining) at System.Threading.Tasks.Task.RunContinuations(Object continuationObject) at System.Threading.Tasks.Task1.TrySetResult(TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.SetExistingTaskResult(Task1 task, TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure.TransportManager.StopTransportsAsync(List1 transportsToStop, CancellationToken cancellationToken) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread) at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext() at System.Threading.Tasks.AwaitTaskContinuation.RunOrScheduleAction(IAsyncStateMachineBox box, Boolean allowInlining) at System.Threading.Tasks.Task.RunContinuations(Object continuationObject) at System.Threading.Tasks.Task.TrySetResult() at System.Threading.Tasks.Task.WhenAllPromise.Invoke(Task completedTask) at System.Threading.Tasks.Task.RunContinuations(Object continuationObject) at System.Threading.Tasks.Task1.TrySetResult(TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.SetExistingTaskResult(Task1 task, TResult result)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.SetResult()
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure.TransportManager.ActiveTransport.UnbindAsync(CancellationToken cancellationToken)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecutionContextCallback(Object s)
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.MoveNext(Thread threadPoolThread)
at System.Runtime.CompilerServices.AsyncTaskMethodBuilder1.AsyncStateMachineBox1.ExecuteFromThreadPool(Thread threadPoolThread)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading.PortableThreadPool.WorkerThread.WorkerThreadStart()
--- End of stack trace from previous location ---
at System.Threading.PeriodicTimer.State.System.Threading.Tasks.Sources.IValueTaskSource<System.Boolean>.GetResult(Int16 token)
at Miningcore.Blockchain.JobManagerBase1.StartDaemonAsync(CancellationToken ct) in /Miningcore/Miningcore/src/Miningcore/Blockchain/JobManagerBase.cs:line 48 at Miningcore.Blockchain.JobManagerBase1.StartAsync(CancellationToken ct) in /Miningcore/Miningcore/src/Miningcore/Blockchain/JobManagerBase.cs:line 111
at Miningcore.Blockchain.Bitcoin.BitcoinPool.SetupJobManager(CancellationToken ct) in /Miningcore/Miningcore/src/Miningcore/Blockchain/Bitcoin/BitcoinPool.cs:line 477
at Miningcore.Mining.PoolBase.RunAsync(CancellationToken ct) in /Miningcore/Miningcore/src/Miningcore/Mining/PoolBase.cs:line 422
nodes@node-miningcore:/Miningcore/Miningcore/src/Miningcore/bin/Release/net8.0$ ^C

[soosho]

Hey, I took a look at the code to trace where this is coming from.

The error is thrown during the daemon health check in BitcoinJobManagerBase.cs — it calls getblockchaininfo RPC, and when the response comes back, something in the deserialization pipeline null-refs. The "Daemon reports:" prefix is from line 413 of that file.

Looking at RpcClient.cs, the ExecuteAsync method wraps any unhandled exception into a JsonRpcError with code -500 and the exception message as-is. So the "Object reference not set to an instance of an object" is a .NET NullReferenceException happening somewhere between getting the HTTP response and deserializing it to BlockchainInfo.

A few things to check on your end:

1. Can you manually curl the DigiByte 9.x daemon to see what getblockchaininfo returns now? Compare that to what an 8.x node returns. If the response structure changed (new fields, removed fields, null where there used to be a value), that would explain it.

2. Is the RPC auth working? DigiByte 9.x might have changed the default rpcauth/rpcuser behavior. Try curl --user user:pass -d '{"jsonrpc":"1.0","id":"1","method":"getblockchaininfo","params":[]}' http://127.0.0.1:9998/ and see if you get a valid response.

3. What changed in DigiByte 9.x specifically? If they moved to a newer Bitcoin Core base version, the getblockchaininfo response might include fields like chainwork, initialblockdownload, or size_on_disk with slightly different types or nulls that trip up Newtonsoft's deserializer.

I couldn't reproduce this since I don't have a DigiByte 9.x node running, but if you paste the raw JSON from getblockchaininfo I can help narrow it down.

[soosho]

Hey, I took a look at the code to trace where this is coming from.

The error is thrown during the daemon health check in BitcoinJobManagerBase.cs -- it calls getblockchaininfo RPC, and the deserialization of the response is where the null-ref happens. The "Daemon reports:" prefix is from line 413.

In RpcClient.cs ExecuteAsync, any unhandled exception gets wrapped into a JsonRpcError with code -500 and its message copied as-is. So "Object reference not set to an instance of an object" is a .NET NullReferenceException somewhere between the HTTP response coming back and the JSON deserialization to BlockchainInfo.

A few things to check:

1. Curl your DigiByte 9.x daemon to see what getblockchaininfo returns vs 8.x. If the response shape changed (new fields, removed, or null where there used to be a value), that would be it.

2. DigiByte 9.x likely rebased on newer Bitcoin Core. The getblockchaininfo response may have extra fields or changed types that Newtonsoft trips over.

3. If you paste the raw getblockchaininfo JSON from the 9.x node I can help narrow it down further.

[SoloBoozt]

i found the answer and its way to much for me im not a real coder sorry

To make soosho/miningcore support DigiByte 9.x, you must:

✔ Rewrite the entire DigiByte integration
✔ Rewrite RPC parsing
✔ Rewrite block template logic
✔ Rewrite transaction parsing
✔ Rewrite consensus logic
✔ Rewrite multi‑algo support
✔ Rewrite ZMQ handling
✔ Rewrite share validation
✔ Rewrite block submission
✔ Rewrite coinbase logic
✔ Rewrite difficulty logic
This is not a patch.
This is a full protocol port.

You’re basically writing:

“Miningcore‑DigiByte Edition”

from scratch.

[soosho]

That AI just lied to you. Miningcore already supports Bitcoin, Litecoin, Bitcoin Cash, Dogecoin, and a dozen other Bitcoin Core forks — DigiByte 9.x isn't special. The error in your log is one NullReferenceException during getblockchaininfo, not 'rewrite everything.' It's probably a single field in the RPC response that changed shape and Newtonsoft can't deserialize it. If you paste the raw JSON from getblockchaininfo I can tell you exactly which line needs changing. Don't let ChatGPT scare you into thinking this needs a full rewrite when it doesn't.

[SoloBoozt]

Ok I will have to reinstall it will do it later today and post the error to this email and thanks you for the fast response

…

________________________________ From: Soosho ***@***.***> Sent: Sunday, July 19, 2026 11:44 AM To: soosho/miningcore ***@***.***> Cc: BabySitting ***@***.***>; Author ***@***.***> Subject: Re: [soosho/miningcore] digibyte 9.x update issue can any one help me (Issue #19) [https://avatars.githubusercontent.com/u/162333149?s=20&v=4]soosho left a comment (soosho/miningcore#19)<#19 (comment)> That AI just lied to you. Miningcore already supports Bitcoin, Litecoin, Bitcoin Cash, Dogecoin, and a dozen other Bitcoin Core forks — DigiByte 9.x isn't special. The error in your log is one NullReferenceException during getblockchaininfo, not 'rewrite everything.' It's probably a single field in the RPC response that changed shape and Newtonsoft can't deserialize it. If you paste the raw JSON from getblockchaininfo I can tell you exactly which line needs changing. Don't let ChatGPT scare you into thinking this needs a full rewrite when it doesn't. — Reply to this email directly, view it on GitHub<#19?email_source=notifications&email_token=CFVPAQSUCOK5DYLVCRF7FXL5FT3GZA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKMBRGY2TGNZQHEYKM4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2KYZTPN52GK4S7MNWGSY3L#issuecomment-5016537090>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/CFVPAQTORFCVKIZD6MKYOX35FT3GZAVCNFSNUABGKJSXA33TNF2G64TZHMYTENRRGYZDGMZYGA5US43TOVSTWNBYGY4DKNRXGYZTTILWAI>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS<https://github.com/notifications/mobile/ios/CFVPAQVLNLI3IFSWIPB4V535FT3GZA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKMBRGY2TGNZQHEYKM4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2KUZTPN52GK4S7NFXXG> and Android<https://github.com/notifications/mobile/android/CFVPAQRLST2HQYKOSCTZ2735FT3GZA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKMBRGY2TGNZQHEYKM4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2K4ZTPN52GK4S7MFXGI4TPNFSA>. Download it today! You are receiving this because you authored the thread.Message ID: ***@***.***>

[soosho]

if you need direct help, feel free to reach me on discord @sooxo_0 or telegram https://t.me/soosho_dev