Makefile:138: recipe for target 'all' failed make: *** [all] Error 2 Invoking "make -j4 -l4" failed

This error message indicates that the "make" command failed to execute properly, resulting in the target "all" not being built successfully. The command "make -j4 -l4" was invoked but failed to complete successfully, resulting in the error code "Error 2".

Possible reasons for this error could be:

- Syntax error in the Makefile
- Missing dependencies
- Insufficient permissions
- Incorrect paths or file names
- Compiler or linker errors

To resolve this error, you should check the Makefile for any syntax errors or missing dependencies, verify that you have the necessary permissions to execute the command, and ensure that all paths and file names are correct. If the error persists, you may need to consult the documentation for the software you are building or seek assistance from a technical support forum.