--- title: Troubleshooting Transport Network Imports description: If you're experiencing difficulty importing a transport network, you may need to reduce its file size or correct invalid coordinates --- [Skip to content](https://support.podaris.com/troubleshooting-transport-network-imports#main-content) English Show submenu for translations ![podaris\_logo\_png.png\]](https://support.podaris.com/hs-fs/hubfs/podaris_logo_png.png?height=50&name=podaris_logo_png.png) Open main navigation Close main navigation - English Show submenu for translations - [Go to podaris.com](https://podaris.com/) [Go to podaris.com](https://podaris.com/) Podaris Support Centre - There are no suggestions because the search field is empty. 1. [Help Center](https://support.podaris.com/?hsLang=en) 2. [Scheduled Services](https://support.podaris.com/scheduled-services?hsLang=en) 3. [GTFS Import](https://support.podaris.com/scheduled-services?hsLang=en#gtfs-import) # Troubleshooting Transport Network Imports ## If you're experiencing difficulty importing a transport network, you may need to reduce its file size or correct invalid coordinates **File Size** When transport networks are not importing successfully into Podaris this can commonly be due to overly large file sizes.  File size limits vary depending on the type of file you are uploading: | Format | Extension | | --- | --- | | GeoJSON | .geojson, .json | | KML | .kml | | GPX | .gpx | | CSV | .csv | | Shapefile (zipped) | .zip | | Podaris project or dataset | .podaris | | GTFS or TransXChange feed (zipped) | .zip | If your upload exceeds these limits, you will receive a **"Too large"** message in the upload panel before processing begins. If you need to import larger GTFS/TransXChange feeds or datasets, contact your Podaris support to adjust instance limits. **Pre-Upload Validation Errors** As soon as you select or drop a file into the [asset library](https://support.podaris.com/asset-library?hsLang=en), Podaris inspects the file and provides immediate feedback on the file card before any data is uploaded. Common validation messages and how to resolve them include: - **Too large:** The file exceeds the maximum size limit for its format (see table above). You must simplify or compress the dataset before uploading. - **Coordinates in the wrong place:** Typically indicates that the file uses a local or projected coordinate system instead of WGS 84 (EPSG:4326). Convert the file’s CRS to standard latitude/longitude coordinates in a GIS tool before re-uploading. - **No features Podaris can use:** The file is empty, corrupt, or contains geometry types that Podaris cannot read. Inspect the file in a GIS desktop application to ensure it contains valid features. - *Note:* Podaris does not support multipart geometries. 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