Compilation errors (2026 modernization)

The most common group after the 2026 modernization: cannot find symbol / package does not exist from using a removed or renamed API. Format: symptom → cause → fix.

Fix-up table: legacy → current

Won’t compile (legacy)	Fix (current)
`Settings` (config/state)	`Device` / `DeviceConfig` / `LocaleFormats` / `Screen`
`Settings.appSettings` / `appSecretKey`	SQLite or files in `Device.homeFolder`
`Toast` / `ToolTip`	`Hint`
`Chart` / `Series` / `LineChart` / `PieChart` / `Velocimeter`	`ChartView` (+ `ChartType`)
`Rect`	`Rectangle`
`ScrollPosition`	`ScrollIndicator`
`Color` / `ColorWheel` class	constants in `UIConstants` + `ColorUtils`
`Transition` class	nested enum `UIConstants.Transition`
`DefaultValues`	`DeviceConfig`
`import dev.crossfly.sql.*` (JDBC: `Connection`/`Statement`/`ResultSet`)	`import dev.crossfly.sqlite.*` (`SqliteDb`/`SqliteStmt`/`SqliteCursor`)
Bluetooth JSR-82 (`DiscoveryAgent`/`RemoteDevice`)	BLE/GATT (`BluetoothManager`…)
`phone` package	`device`
`anim` / `item` package	`animation` / `listitem`

Removed with no direct replacement

Grid, Tree/Node/TreeModel, TopMenu, Accordion, Spacer, Velocimeter, PDF, ESC/POS, Barcode (now via camera), printers. If your code uses one of these, you’ll need to re-architect (e.g.: Grid → GridLayout; Spacer → Gap/fractions; barcode → CameraBarcode/BarcodePicker).

Import fix-up example

// before (does not compile)
import dev.crossfly.sql.*;      // JDBC removed
new Toast("Salvo");            // Toast removed

// after
import dev.crossfly.sqlite.*;   // native API
Hint.show("Salvo", 2000);            // Hint

Compilation errors (2026 modernization)

Fix-up table: legacy → current

Removed with no direct replacement

Import fix-up example

See also