---
page_id: wsd-inout-unsupported-error-c596fc57
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title: "Thread: InOut unsupported error"
slug: wsd-inout-unsupported-error-c596fc57
route: /evidence/i-information/questions/threads/inout-unsupported-error
section: reference
access: public
summary: 2 Discord messages from ℹ️ - Information/⁉️-questions/threads/inout-unsupported-error.md.
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---

# Thread: InOut unsupported error

Category: **ℹ️ - Information**
Parent channel: **#⁉️-questions**
Thread ID: `1450229056917475391`

Messages: **2**

## message-1450229056917475391

**2025-12-15T20:52:31.122+00:00 — chvsnaveen12**

- Message ID: `1450229056917475391`
- Author ID: `577409759624560645`
- Nickname: chvsnaveen12
- User name: chvsnaveen12
- Type: `Default`
- Discord message: https://discord.com/channels/1361349522684510449/1450229056917475391/1450229056917475391
- Archive source: https://discord.wafer.space/wafer-space/%E2%84%B9%EF%B8%8F%20-%20Information/%E2%81%89%EF%B8%8F-questions/inout-unsupported-error/2025-12/2025-12.json
- Archive source: https://discord.wafer.space/wafer-space/Information/questions/inout-unsupported-error/2025-12/2025-12.json

**Content**

```text
Has anyone encountered this error before. My entire project is in Systemverilog.
6. Executing SLANG frontend.
src/chip_core.sv:18:17: error: direction 'InOut' on inlined port connection unsupported
    inout  wire VDD,
                ^
src/chip_core.sv:19:17: error: direction 'InOut' on inlined port connection unsupported
    inout  wire VSS,
                ^
src/chip_core.sv:38:39: error: direction 'InOut' on inlined port connection unsupported
    inout  wire [NUM_ANALOG_PADS-1:0] analog  // Analog
```

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---

## message-1450231147123445955

**2025-12-15T21:00:49.466+00:00 — Leo Moser (mole99) (@mole99)**

- Message ID: `1450231147123445955`
- Author ID: `323371864074485771`
- Nickname: Leo Moser (mole99)
- User name: mole99
- Type: `Default`
- Discord message: https://discord.com/channels/1361349522684510449/1450229056917475391/1450231147123445955
- Archive source: https://discord.wafer.space/wafer-space/%E2%84%B9%EF%B8%8F%20-%20Information/%E2%81%89%EF%B8%8F-questions/inout-unsupported-error/2025-12/2025-12.json
- Archive source: https://discord.wafer.space/wafer-space/Information/questions/inout-unsupported-error/2025-12/2025-12.json

**Content**

```text
If you use slang, did you also set: `SLANG_ARGUMENTS: ['--keep-hierarchy']`?
```

**Reactions**

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- Resolved media URL: https://discord.wafer.space/wafer-space/%E2%84%B9%EF%B8%8F%20-%20Information/%E2%81%89%EF%B8%8F-questions/inout-unsupported-error/2025-12/2025-12_media/fb1d1a9872c8ef9ce08855c75f2963a7-A225D.png
- Resolved media URL: https://discord.wafer.space/wafer-space/%E2%84%B9%EF%B8%8F%20-%20Information/%E2%81%89%EF%B8%8F-questions/inout-unsupported-error/2025-12/2025-12_media/e09222f2e96cdf0e69c67cade4a7a0f1-A2EFE.png
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