Delphi XE - F1027 Unit not found: 'System.pas' or binary equivalents (.dcu) upon Activation of trial version

Question

I just purchased the full version of Delphi XE Architect after using the trial version for 30 days. I can\'t build anything, every time I go to build a project I get the er

Answer 1

When compiling using the command line compiler, so not from within the IDE, you can also get this error when the name of the build configuration is not "debug" and not "release".

It seems that, when using the command line compiler, it tries to find its dcus in a path under BDSLIB that it constructs using the configuration name. I had this happening when using a configuration named ReleaseHA. Note: it was not a sub configuration under "release", but an extra configuration besides "debug" and "release".