Tech Tip: Check the Build Log File When an Error Occurs
PRODUCT: 4D | VERSION: 21 | PLATFORM: Mac & Win
Published On: March 2, 2026
When an application is built, 4D automatically generates a log file named BuildApp.log.xml in the Logs folder of the project.
This file is located in:
myProject/Data/Logs
This log file contains detailed information for each build, including:
If the developer encounter an error while building the application, check the BuildApp.log.xml file first.
This file provides detailed diagnostic information that can help the developer quickly identify the cause of the issue, whether it is a missing file, a signing problem, or another build-related error.
This file is located in:
myProject/Data/Logs
This log file contains detailed information for each build, including:
- The start and end time of the build process
- The names and full paths of the generated files
- The date and time of the build
- Any errors that occurred during the build
- Any signing issues (for example, an unsigned plug-in)
If the developer encounter an error while building the application, check the BuildApp.log.xml file first.
This file provides detailed diagnostic information that can help the developer quickly identify the cause of the issue, whether it is a missing file, a signing problem, or another build-related error.