Solution: This is a known compiler ordering issue. Open the group project manually (DevExpressVCL.groupproj) and compile dxTheme.dpk first, then reload DxAutoInstaller.
The software industry pushes subscriptions, but DevExpress VCL 18.2.6 Full Source offers distinct advantages if you fit a specific profile:
Yes, download if:
No, avoid if:
Released in early 2019, DevExpress VCL 18.2.6 represents the last stable iteration before a significant shift in the UI paradigm towards higher DPI scaling and the introduction of new control types. For many organizations, 18.2.6 is the "gold standard" of stability.
Most commercial DevExpress licenses provide compiled .dcu and .bpl files. However, the "Full Source" version includes all .pas files.
If you are reading this guide because you’re struggling with the 18.2.6 install process or lack a license, consider these alternatives: DevExpress VCL 18.2.6 Full Source with DxAutoInstaller 2.2
| Option | Pros | Cons | |--------|------|------| | Official DevExpress Installer (any newer version) | Fully supported, no third-party tools | No source code unless you buy the Source Code Edition; may require subscription. | | TMS VCL UI Pack | More affordable, source included with standard license | Different API, learning curve. | | JEDI VCL (open source) | Free, full source, no licensing hurdles | Less polished, far fewer controls, no reporting or scheduler. | | Manual installation of 18.2.6 (without DxAutoInstaller) | No dependency on a third-party tool | Extremely time-consuming, error-prone, poorly documented. |
This release provides the complete source code of DevExpress VCL 18.2.6, bundled with DxAutoInstaller 2.2 for automated installation, patching, and IDE integration. Ideal for developers needing full control over the library or working in offline/air-gapped environments.
This version (released in late 2018) is a comprehensive set of visual components for Delphi and C++Builder. It is known for high stability and compatibility with older IDE versions (such as Delphi 7 through RAD Studio 10.3 Rio). Solution: This is a known compiler ordering issue
Key Component Features:
Manually installing DevExpress VCL has historically been painful. It involves compiling dozens of runtime and design-time packages in a specific order (dxCore -> cxLibrary -> ExpressLibrary -> ...). A single wrong compiler switch leads to "Unable to find design package" errors.
DxAutoInstaller 2.2 solves this entirely. No, avoid if: Released in early 2019, DevExpress VCL 18