panic: unexpected bicep type: ''

[EverybodyKurts]

• Make sure you've installed the latest version using instructions in the wiki

Output from azd version

% docker run --rm mcr.microsoft.com/azure-dev-cli-apps:1.3.1 azd version 
WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
azd version 1.3.1 (commit b5030da0f29ffe98664c40450187fd8a4cb0d157)

Describe the bug

An go error is thrown when azd provision is ran:

2023-09-26T16:53:41.6892285Z Provisioning Azure resources (azd provision)
2023-09-26T16:53:41.6892558Z Provisioning Azure resources can take some time
2023-09-26T16:53:41.6892661Z 
2023-09-26T16:53:41.7108538Z Downloading Bicep
2023-09-26T16:53:47.9599014Z Creating a deployment plan
2023-09-26T16:53:53.0771984Z Retrieving subscriptions...
2023-09-26T16:54:00.7781200Z panic: unexpected bicep type: ''
2023-09-26T16:54:00.7781714Z 
2023-09-26T16:54:00.7782015Z goroutine 1 [running]:
2023-09-26T16:54:00.7790655Z github.com/azure/azure-dev/cli/azd/pkg/infra/provisioning/bicep.(*BicepProvider).mapBicepTypeToInterfaceType(0x564cbb4c1780?, {0x0?, 0xc000015180?})
2023-09-26T16:54:00.7791329Z 	/mnt/vss/_work/1/s/cli/azd/pkg/infra/provisioning/bicep/bicep_provider.go:1348 +0x22c
2023-09-26T16:54:00.7792572Z github.com/azure/azure-dev/cli/azd/pkg/infra/provisioning/bicep.(*BicepProvider).ensureParameters(0xc0003dd110, {0x564cbb6379c8, 0xc0004d45d0}, {{0xc000044660, 0x5b}, {0xc000014dd0, 0x7}, 0xc0002ec450, 0xc0002ec840}, 0xc000207650)
2023-09-26T16:54:00.7793141Z 	/mnt/vss/_work/1/s/cli/azd/pkg/infra/provisioning/bicep/bicep_provider.go:1575 +0x75d
2023-09-26T16:54:00.7793777Z github.com/azure/azure-dev/cli/azd/pkg/infra/provisioning/bicep.(*BicepProvider).plan(0xc0003dd110, {0x564cbb6379c8, 0xc0004d45d0})
2023-09-26T16:54:00.7794244Z 	/mnt/vss/_work/1/s/cli/azd/pkg/infra/provisioning/bicep/bicep_provider.go:354 +0x25a
2023-09-26T16:54:00.7795029Z github.com/azure/azure-dev/cli/azd/pkg/infra/provisioning/bicep.(*BicepProvider).Deploy(0xc0003dd110, {0x564cbb6379c8?, 0xc0004d45d0?})
2023-09-26T16:54:00.7795496Z 	/mnt/vss/_work/1/s/cli/azd/pkg/infra/provisioning/bicep/bicep_provider.go:417 +0x6b
2023-09-26T16:54:00.7796106Z github.com/azure/azure-dev/cli/azd/pkg/infra/provisioning.(*Manager).Deploy(0xc0004745b0, {0x564cbb6379c8, 0xc0004d45d0})
2023-09-26T16:54:00.7796549Z 	/mnt/vss/_work/1/s/cli/azd/pkg/infra/provisioning/manager.go:56 +0x32
2023-09-26T16:54:00.7797019Z github.com/azure/azure-dev/cli/azd/cmd.(*provisionAction).Run.func1()
2023-09-26T16:54:00.7797396Z 	/mnt/vss/_work/1/s/cli/azd/cmd/provision.go:148 +0x71
2023-09-26T16:54:00.7798102Z github.com/azure/azure-dev/cli/azd/pkg/ext.(*EventDispatcher[...]).Invoke(0x564cbb641a80?, {0x564cbb6379c8, 0xc0004d45d0}, {0x564cbaf9896c, 0x9}, {0xc0004a86e0, 0x0?}, 0xc000340be8?)
2023-09-26T16:54:00.7798591Z 	/mnt/vss/_work/1/s/cli/azd/pkg/ext/event_dispatcher.go:113 +0x24b
2023-09-26T16:54:00.7799160Z github.com/azure/azure-dev/cli/azd/cmd.(*provisionAction).Run(0xc000474690, {0x564cbb6379c8, 0xc0004d45d0})
2023-09-26T16:54:00.7799568Z 	/mnt/vss/_work/1/s/cli/azd/cmd/provision.go:143 +0x3f7
2023-09-26T16:54:00.7800136Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*MiddlewareRunner).RunAction.func1({0x564cbb6379c8?, 0xc0004d45d0?})
2023-09-26T16:54:00.7800577Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/middleware.go:127 +0x2e8
2023-09-26T16:54:00.7801327Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*HooksMiddleware).registerCommandHooks(0xc00048dcc0?, {0x564cbb6379c8, 0xc0004d45d0}, 0x564cba717fa5?, 0xc0004a86e0?, 0xc00048d9c0)
2023-09-26T16:54:00.7801809Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/hooks.go:83 +0x2f5
2023-09-26T16:54:00.7802409Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*HooksMiddleware).Run(0xc00048dcc0, {0x564cbb6379c8?, 0xc0004d4450?}, 0xc00048d9c0)
2023-09-26T16:54:00.7802851Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/hooks.go:67 +0x1d8
2023-09-26T16:54:00.7803444Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*MiddlewareRunner).RunAction.func1({0x564cbb6379c8, 0xc0004d4450})
2023-09-26T16:54:00.7803878Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/middleware.go:125 +0x2a2
2023-09-26T16:54:00.7804522Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*TelemetryMiddleware).Run(0xc00006eff0, {0x564cbb6379c8, 0xc000497b30}, 0xc00048d9c0)
2023-09-26T16:54:00.7805184Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/telemetry.go:75 +0x759
2023-09-26T16:54:00.7805759Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*MiddlewareRunner).RunAction.func1({0x564cbb6379c8, 0xc000497b30})
2023-09-26T16:54:00.7806189Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/middleware.go:125 +0x2a2
2023-09-26T16:54:00.7841878Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*ExperimentationMiddleware).Run(0x564cbaf9f71e?, {0x564cbb6379c8, 0xc000497b30}, 0xc00048d9c0)
2023-09-26T16:54:00.7842567Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/experimentation.go:64 +0x4d6
2023-09-26T16:54:00.7843189Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*MiddlewareRunner).RunAction.func1({0x564cbb6379c8, 0xc000497b30})
2023-09-26T16:54:00.7843626Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/middleware.go:125 +0x2a2
2023-09-26T16:54:00.7844253Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*DebugMiddleware).Run(0xc00048eb70, {0x564cbb6379c8, 0xc000497b30}, 0xc00048d9c0)
2023-09-26T16:54:00.7845791Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/debug.go:48 +0x311
2023-09-26T16:54:00.7846525Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*MiddlewareRunner).RunAction.func1({0x564cbb6379c8, 0xc000497b30})
2023-09-26T16:54:00.7847484Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/middleware.go:125 +0x2a2
2023-09-26T16:54:00.7848115Z github.com/azure/azure-dev/cli/azd/cmd/middleware.(*MiddlewareRunner).RunAction(0xc000415230, {0x564cbb6379c8, 0xc000497b30}, 0x564cbb403ce0?, {0x564cbb62d098?, 0xc000474690})
2023-09-26T16:54:00.7848506Z 	/mnt/vss/_work/1/s/cli/azd/cmd/middleware/middleware.go:131 +0x226
2023-09-26T16:54:00.7849146Z github.com/azure/azure-dev/cli/azd/cmd.(*CobraBuilder).configureActionResolver.func1(0xc00040e500, {0xc0004af6a0?, 0x0, 0x1})
2023-09-26T16:54:00.7849487Z 	/mnt/vss/_work/1/s/cli/azd/cmd/cobra_builder.go:143 +0x4ef
2023-09-26T16:54:00.7849767Z github.com/spf13/cobra.(*Command).execute(0xc00040e500, {0xc0004af690, 0x1, 0x1})
2023-09-26T16:54:00.7850081Z 	/home/cloudtest/go/pkg/mod/github.com/spf13/cobra@v1.3.0/command.go:856 +0x694
2023-09-26T16:54:00.7850371Z github.com/spf13/cobra.(*Command).ExecuteC(0xc0003b9900)
2023-09-26T16:54:00.7850658Z 	/home/cloudtest/go/pkg/mod/github.com/spf13/cobra@v1.3.0/command.go:974 +0x38d
2023-09-26T16:54:00.7850931Z github.com/spf13/cobra.(*Command).Execute(...)
2023-09-26T16:54:00.7851191Z 	/home/cloudtest/go/pkg/mod/github.com/spf13/cobra@v1.3.0/command.go:902
2023-09-26T16:54:00.7851516Z github.com/spf13/cobra.(*Command).ExecuteContext(0x564cbb108400?, {0x564cbb637990?, 0x564cbbc8da00?})
2023-09-26T16:54:00.7851843Z 	/home/cloudtest/go/pkg/mod/github.com/spf13/cobra@v1.3.0/command.go:895 +0x47
2023-09-26T16:54:00.7852083Z main.main()
2023-09-26T16:54:00.7852291Z 	/mnt/vss/_work/1/s/cli/azd/main.go:61 +0x1f0
2023-09-26T16:54:00.7942524Z ##[error]Script failed with exit code: 2
2023-09-26T16:54:00.7993788Z [command]/usr/bin/az account clear
2023-09-26T16:54:01.6658122Z ##[section]Finishing: Provision Infrastructure

To Reproduce

I'm currently trying to provision infrastructure via the azd provision command using the new feature, "user defined types", enabled via bicepconfig.json:

{
  // See https://aka.ms/bicep/config for more information on Bicep configuration options
  // Press CTRL+SPACE/CMD+SPACE at any location to see Intellisense suggestions
  "analyzers": {
    "core": {
      "rules": {
        "no-unused-params": {
          "level": "error"
        }
      }
    }
  },
  "experimentalFeaturesEnabled": {
    "extensibility": true,
    "userDefinedTypes": true,
    "compileTimeImports": true
  }
}

Here is the simple user defined type I created:

@export()
type environmentTypes = 'sandbox' | 'dev' | 'test' | 'prod'

Expected behavior

The stack trace isn't very helpful and I don't know where in my bicep code is causing the crash. At least tell me the line number in the compiled ARM json file where it throws the error.

[vhvb1989]

@EverybodyKurts , this an issue on azd while trying to handle the parameter. A fix has been created: #2793