How do I prevent dotnet:NETSDK1005 in CI?

Do not cache or share `obj/` across different TFMs or RIDs; cache global packages instead. Always restore in the same configuration you build or publish.

How can I manually validate dotnet:NETSDK1005?

Re-run the failing command and confirm the original code/message is gone. Confirm expected artifacts or outputs exist (packages restored, build/publish succeeds).

NETSDK1005 / NETSDK1047: Assets file doesn't have a required target

Fix it fast

Most likely: obj/project.assets.json was restored for a different target framework or runtime identifier than the one used by the current build or publish command.

Confirm this is your error

Match the output and confirm you are troubleshooting the same failure.

error NETSDK1005: Assets file 'obj/project.assets.json' doesn't have a target for 'net8.0'.
error NETSDK1047: Assets file 'obj/project.assets.json' doesn't have a target for 'net8.0/win-x64'.

Check the cause

Run focused checks to identify what is failing in this environment.

grep -n "<TargetFramework\|<TargetFrameworks\|<RuntimeIdentifier\|<RuntimeIdentifiers" *.csproj
dotnet restore -v minimal
dotnet build --no-restore

Apply the safe fix

Use the smallest safe change that addresses the confirmed cause.

# Restore using the same target framework and runtime identifier you build or publish with.
dotnet restore -r <rid>
dotnet publish -r <rid>

# If obj/bin are stale from a different TFM or RID, clean and regenerate build outputs.
dotnet clean
dotnet restore
dotnet build

Verify it works

Repeat the relevant checks and confirm the original error is gone.

dotnet build
dotnet publish -r <rid>

Avoid unsafe shortcuts

Keep security and data protections in place while troubleshooting.

Do not reuse cached obj/ folders across target frameworks or runtime identifiers.
Do not run build or publish with --no-restore after changing TargetFrameworks or RuntimeIdentifiers.
Do not add random RIDs, make sure the RID used by publish is listed when the project requires RuntimeIdentifiers.

What Broke in the Dependency Graph

The existing assets file was restored for a different target framework or runtime identifier than the current build or publish command.

Repair the dependency graph

Restore for the specific TFM or RID, and include -r <rid> if publishing with a RID.

Delete obj/ and bin/ if needed, then restore and build again.

Ensure RuntimeIdentifiers includes the RID used by build or publish.

Validation

Re-run the failing command and confirm the original code/message is gone, and confirm expected artifacts or outputs exist (packages restored, build/publish succeeds).

Why Resolution Broke

Usually this comes down to stale obj/ came from a restore that targeted different TFMs, you are building or publishing with -r <rid> but restored without that RID, or CI caches or shares obj/ across TFMs or RIDs.

Prove the Graph Is Clean Again

dotnet build or dotnet publish succeeds without NETSDK1005 or NETSDK1047.

obj/project.assets.json contains a target for the requested TFM, and RID when applicable.

Mechanism

Assets file targets are keyed by TargetFramework, and sometimes by TargetFramework plus RuntimeIdentifier. If you build with a new TFM or RID but didn’t restore for it, NETSDK1005 or NETSDK1047 fires.

Keep the Dependency Graph Healthy

To prevent this, do not cache or share obj/ across different TFMs or RIDs, cache global packages instead, and always restore in the same configuration you build or publish.

Docs and source code

NETSDK1005 message template

Assets file missing a TargetFramework target. - GitHub

  <data name="AssetsFileMissingTarget" xml:space="preserve">
    <value>NETSDK1005: Assets file '{0}' doesn't have a target for '{1}'. Ensure that restore has run and that you have included '{2}' in the TargetFrameworks for your project.</value>
    <comment>{StrBegins="NETSDK1005: "}</comment>
  </data>

NETSDK1047 message template

Assets file missing a TargetFramework/RuntimeIdentifier target. - GitHub

  <data name="AssetsFileMissingRuntimeIdentifier" xml:space="preserve">
    <value>NETSDK1047: Assets file '{0}' doesn't have a target for '{1}'. Ensure that restore has run and that you have included '{2}' in the TargetFrameworks for your project. You may also need to include '{3}' in your project's RuntimeIdentifiers.</value>
    <comment>{StrBegins="NETSDK1047: "}</comment>
  </data>