Answer
UwTerminalX uses online cross-compiling to compile smart BASIC code. This error is displayed when an internet connection is not present. Connecting to the internet should resolve this issue. If an internet connection is not possible, navigate to the Config tab in UwTerminalX and uncheck the Online XCompile box found in the lower right corner. You will need to compile your smart BASIC code locally with the cross compiler that is found in the firmware download folder which is available on the product pages under the Software Downloads tab of the Laird Connectivity website. The Xcomp file must located in the same folder as your smart BASIC code to allow for proper cross compiling.