Go 1.27.0 Compatibility: Fix "internal error: package 'context' without types

Title: [Go 1.27.0] Fix "internal error: package 'context' without types" by updating golang.org/x/tools

• The issue is present in the latest release.
• I have searched the issues of this repository and believe that this is not a duplicate.

Current Behavior

After upgrading from Go 1.26.x to Go 1.27.0, running ent generate fails with the following error:

internal error: package "context" without types was imported from "entgo.io/ent"
exit status 1

This error occurs even when:

• No schema files directly import the context package
• The same schema files worked perfectly with Go 1.26.x
• Using either go run entgo.io/ent/cmd/ent generate or a custom entc.go script

Expected Behavior

ent generate should complete successfully without errors, as it did with Go 1.26.x, generating all entity code normally.

Steps to Reproduce

Steps:

1. Upgrade Go from 1.26.x to 1.27.0
2. Have an existing Ent project with schemas (any schemas will trigger this)
3. Run go run entgo.io/ent/cmd/ent generate ./schema or go run ./entc.go
4. Observe the error: internal error: package "context" without types was imported from "entgo.io/ent"

Your Environment

✅ Solution / Workaround

This is NOT a bug in Ent, but rather a compatibility issue between Go 1.27.0's updated type checker and older versions of golang.org/x/tools.

Fix (One Command)

Simply update golang.org/x/tools to the latest version:

go get -u golang.org/x/tools@latest

After running this command, ent generate works perfectly without any code changes.

Verification

# Before fix
$ go run ./entc.go
2026/09/01 02:03:11 internal error: package "context" without types was imported from "entgo.io/ent"
exit status 1

# After updating golang.org/x/tools
$ go get -u golang.org/x/tools@latest
go: upgraded golang.org/x/tools v0.43.0 => v0.49.0

$ go run ./entc.go
# ✅ Success - no errors, all code generated

Why This Happens

1. Go 1.27.0 Changes: Go 1.27 includes updates to the go/types package and type checking behavior
2. x/tools Dependency: Ent uses golang.org/x/tools/go/packages for code analysis
3. Version Mismatch: Older x/tools versions (v0.43.0 and earlier) weren't tested against Go 1.27's new behavior
4. Type Information Loss: The type checker can't properly extract type information from standard library packages like context

Recommendation

When upgrading to Go 1.27 or later, always update dependencies:

go get -u golang.org/x/tools@latest
go get -u golang.org/x/mod@latest

Tested Working Configuration

go version go1.27.0 darwin/arm64
entgo.io/ent v0.14.6
golang.org/x/tools v0.49.0
golang.org/x/mod v0.39.0

Note: This issue is similar to past Go version upgrades (e.g., Go 1.18, 1.20) where x/tools needed updates. I'm creating this issue to help other users who encounter the same problem when upgrading to Go 1.27.0.

If this helps you, please leave a to help others find this solution quickly!