This is just a warning that we are seeing an issue with the latest release when customers try to debug a project. Silicon Labs is able to reproduce the issue and we are working on getting a fix published as soon as possible. Until that fix is released it is recommended not to update Simplicity Studio at this time.
Silicon Labs will update this Knowledge base article as soon as the release has been published.
We apologize for this issue.
There is a known issue with the BLE 220.127.116.11 and 18.104.22.168 SDKs if a project is created and only a part is specified not a Silicon Labs development board, then when the AppBuilder is run by pressing the "Generate" button the generation action will fail and a "Configuration Error" dialog box will be shown:
The work around is to choose the radio board that has the part with same 'feature set' on it as the starting point for creating the project and then edit the project to remove the board dependencies. The 'feature set' portion of the target part number is the 3 digits after performance grade. For example for the EFR32BG1B232F256GM56, the BG1B232 indicates the Blue Gecko Series 1 family, the B is the 'basic' performance grade and the feature set is the '232'. This url can be used to help select which radio board to specify in Simplicity Studio: https://www.silabs.com/products/development-tools/wireless/wireless-radio-boards#bluetooth The 'BRD' can be used in place of the 'SLWRB' in the part number.