Why can't I load GLScene as a package in C++Builder?

Question

I am trying to use GLScene (a third-party FireMonkey component for C++Builder and Delphi). I downloaded the zip, and in it, among other things, are .bpl files for use in C++Builder. When I try to install the package in my project (a C++Builder multi-device application) under Component > Install Packages... > Add, I get this error:

My directory structure:

The _Installation directory and the Readme's are not very helpful. I have tried the other .bpl files and also tried importing all of them at once, but the same error occurs. How do I fix this?

Answer 1

There are several problems.

• The XE3 extension is suspicious. I just downloaded and unzipped the GLScene download. The .BPLs in the CBXE3 and CBXE4 seem to be compiled for XE3 and XE4 respectively. But packages are version-dependent.
  
  You should recompile the sources (also included) for 10.2 Tokyo. Just copy the DelphiXE4 directory to a new directory, and load the .groupproj file or the single .dpk files into the IDE. You might want to change the suffixes (currently XE3) of the packages to, say, Tokyo, in the project options, to avoid DLL (or BPL) hell.
  
  Also take a look at the pictures in the _Installation directory for the other options that must be set. Note that your paths may differ, theirs are just an example.

• The compiler needs to be able to find the .bpi and .lib etc. files in order to be able to link. Set the directories with those files in the project options, as shown in the _Installation pictures.

• The newly compiled .bpl files should be compiled to a directory on the Windows path, so they can be found by the system at runtime. In their example setup, (and in the _Installation pictures) that is the shown C:\Library\GLScene path.