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<https://github.com/The-OpenROAD-Project/OpenLane/issues/1920|#1920 Potential issue with  KLayout sky130 def mapping file>
Issue created by <https://github.com/kareefardi|kareefardi>
*Description*

These were generated while trying to load a layout using `gui.py`:

```
Warning: No mapping for layer 'via', purpose 'LEFPIN' - layer is ignored
Warning: No mapping for layer 'via', purpose 'LEFLABEL' - layer is ignored
Warning: No mapping for layer 'via', purpose 'LEFOBS' - layer is ignored
Warning: No mapping for layer 'via2', purpose 'LEFOBS' - layer is ignored
```

*Expected Behavior*

No such warnings

*Environment report*

```
Kernel: Linux v6.1.0-1017-oem
Distribution: ubuntu 22.04
Python: v3.10.6 (OK)
Container Engine: docker v20.10.22 (OK)
OpenLane Git Version: 01e67230f35aa4cd08ef33a9f8df8a83f578b710
pip: INSTALLED
python-venv: INSTALLED
---
PDK Version Verification Status: OK
---
Git Log (Last 3 Commits)

01e67230 2023-07-25T13:53:21+03:00 [BOT] Update magic (#1914) - Openlane Bot -  (HEAD -&gt; master, tag: 2023.07.26, origin/master, origin/HEAD)
157a6505 2023-07-25T13:02:39+03:00 Update Documentation (#1917) - Mohamed Gaber -  ()
f6e50abd 2023-07-24T15:20:03+03:00 PIP Version Ranges (#1916) - Mohamed Gaber -  (tag: 2023.07.25)
---
Git Remotes

donn	git@github.com:donn/openlane.git (fetch)
donn	git@github.com:donn/openlane.git (push)
fork	git@github.com:kareefardi/OpenLane.git (fetch)
fork	git@github.com:kareefardi/OpenLane.git (push)
origin	git@github.com:The-OpenROAD-Project/OpenLane.git (fetch)
origin	git@github.com:The-OpenROAD-Project/OpenLane.git (push)
```

*Reproduction material*

<https://github.com/The-OpenROAD-Project/OpenLane/files/12208944/RUN_2023.07.30_09.57.36.partaa.tar.gz|RUN_2023.07.30_09.57.36.partaa.tar.gz>  
<https://github.com/The-OpenROAD-Project/OpenLane/files/12208946/RUN_2023.07.30_09.57.36.partab.tar.gz|RUN_2023.07.30_09.57.36.partab.tar.gz>

*Relevant log output*

```
Warning: No mapping for layer 'via', purpose 'LEFPIN' - layer is ignored
Warning: No mapping for layer 'via', purpose 'LEFLABEL' - layer is ignored
Warning: No mapping for layer 'via', purpose 'LEFOBS' - layer is ignored
Warning: No mapping for layer 'via2', purpose 'LEFOBS' - layer is ignored
```
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>

<https://github.com/The-OpenROAD-Project/OpenLane/issues/1920|#1920 Potential issue with  KLayout sky130 def mapping file>
Issue closed as completed by <https://github.com/kareefardi|kareefardi>
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>