Below is a list of the most frequently asked questions regarding the installation process and migrating to a newer version:
Q: During the installation process I get the following error: "Cannot find Microsoft Document Explorer". How can I overcome it?
A: Embarcadero's IDEs use Microsoft Document Explorer to browse HTML documentation. Our installer refers to it to register the documentation for our components. We recommend that you reinstall the Prerequisites of your IDE in Repair mode.
If the issue still occurs, please send the <DXVCL>\Setup\H2Reg_Log.txt file to our Support Team.
Q: During the installation process I get the "Cannot move" and "Cannot delete" messages. How do I get rid of them?
A: In most situations, files (and corresponding folders) are locked by another process. The easiest way to avoid this issue is to reboot your machine before installation.
Q: When I try to compile my project after an upgrade, I get the following error: "[Fatal Error] Unit1.pas(11): Unit cxGridCustomView was compiled with a different version of cxControls.TcxControl.". How do I resolve it?
Such errors usually occur if some files from another version of our controls persist on your machine. You need to remove these files. The step-by-step algorithm from How to reinstall VCL controls from scratch may be useful in this case. Please refer to the following Embarcadero help topic to learn more about this error: F2051 Unit %s was compiled with a different version of %s.%s (Delphi)
Q: When I launch the IDE, I get several "The procedure entry point … could not be located" errors. How do I avoid such issues?
A: The installer runtime libraries of our components are not in the Windows system folder, but in the <DXVCL>\Library\<IDE_VERSION> folder. In addition, it adds this folder's path to the PATH system environment variable. If you are sure that the PATH variable contains a necessary path and a user-overridden Path environment variable, the one within your IDE (Tools\Environment Options\Environment Variables\User overrides) doesn't override it. So, it looks like your Delphi version doesn't recognize the environment variables for some reason. Please reboot your machine after you update our components. By default, we use a DXVCL variable in the PATH system environment variable (like %DXVCL%\Library\<IDE_VERSION>). You can also replace it with the full folder path.
Another possible cause of this issue is that some old files still persist on your machine. The step-by-step algorithm from How to reinstall VCL controls from scratch may be useful in this case.
Q: VCL Installer has installed all products without any errors. However, I cannot find DX components in the components palette. Why?
A: This issue may occur because you are using a trial or Community IDE version. Our installer requires the fully functional command line compiler file (dcc32.exe). Community and trial IDE versions do not contain the complete version of their command line compiler file.
Another possible cause is that you updated your current DX component installation, but you didn't select all required IDEs for the update. To resolve the issue, re-run DevExpress VCL Product Setup, select the "Modify and Update" option, and select all target IDEs you require.
Q: I cannot compile my project and get the following error: "[DCC Fatal Error] dxCore.pas(1307): F2039 Could not create output file 'C:\DevExFolder\ExpressCore Library\Sources\dxCore.dcu'"
A: This issue can occur due to several factors. First, there may not be enough space on the local drive. Another possible cause is that this folder does not have sufficient access. In this case, try to define another path for the DCU files, but make sure that the folder in the new path exists (the IDE does not create folders).
Q: I receive the "Cannot copy file(s) .dfm;.nfm;*.res" error. How do I resolve it?
A: The installer utilizes a third-party archive extractor to unpack its files and the issue may arise from that tool. It may occur if:
- The installation package is corrupt. Make sure that the size of the file matches the value specified on the product's download page.
- There is not enough space on the disk to unpack the archive. Try to create a new file and folder in the directory you have chosen to install our VCL products.
It is not mandatory, but we recommend that you reboot your machine before running the installer. It may also help.
Q: What are user account requirements for installing VCL controls?
A: By design, our components do not impose special requirements for the libraries to be loaded as Administrator. You can work with our libraries in the same manner as in the case of standard BPLs.
However, administrative privileges are necessary when you install our VCL products because our installer stores some information in the registry. So, an issue may occur if you installed our libraries in a folder that requires special access rights.
Q: I am trying to embed skins into my C++ Builder application. However, I get the Linker error on compiling the project: "Unable to open DXSKINBLACK.OBJ". How do I use skins in a C++ Builder application?
A: This issue occurs because the C++Builder compiler does not automatically include the required file references in its tags. So, to resolve it, you should open the CBPROJ file of your project and include the references to the DX libraries in its <PackageImports> and <AllPackageLibs> tags.
Q: My project cannot be compiled after upgrading to the latest build. Some method declarations are changed and some properties do not persist anymore. Where can I find information about these changes?
A: All necessary information can be found on our Version History web page in the "Breaking Changes" sub-topic. If your situation is not described in the corresponding topic, we invite you to contact our Support Team.
Q: Should I remove the components when I install a new version of DXVCL?
Basically, our VCL Installer removes an older version automatically before it install a newer one, and there should be no issues with this. However, if you encounter any issue when you upgrade our controls to a newer version, please try the algorithm from this help topic: How to reinstall VCL controls from scratch
Q: Can I install two different major versions of the same product (e.g., ExpressQuantumGrid 5 and ExpressQuantumGrid 7) side-by-side?
It is impossible to have two different versions of our components installed in the same IDE because our packages names do not depend on their versions. You cannot have two packages with the same names because Delphi and C++Builder do not support this configuration. As a solution, you can install another version of our components to a virtual machine.
Q: During the installation process, I do not see my IDE in the available IDEs list. Why does this happen?
A: Ensure that the version of our controls you are going to install supports this IDE. You can see the supported IDEs list here: Prerequisites: Supported IDEs, Frameworks, and SDKs.
Another possible cause of this issue is that your IDE may be installed incorrectly or was corrupted somehow. Try the algorithm from this help topic: How to reinstall VCL controls from scratch.
Q: During the installation process, I get "Could not create output file '*.drf'" messages. How do I get rid of them?
A: This is a temporary file created by the IDE compiler in the TEMP system folder. If a path to this folder contains non-Latin characters, the compiler cannot create a file there. You can change the TEMP environment variable in your system to a simple path with Latin characters to avoid such errors.
Q: I installed the VCL Trial version and created a simple project. However, the compiler indicates that DCUs are missing.
A: This is a major limitation of the Trial Version. It does not contain our sources and works with runtime packages only. That is why DCU files do not persist there.
To resolve this issue, enable the "Link with runtime packages" ("Build with runtime packages" in certain IDEs) option in the Project options and rebuild the project.
In addition, you can take a look at our demos (e.g., RibbonNotepadDemo) to see how projects are set up so they can be used with the Trial installation.
Where is the BPLFinder.exe download link ?
You can find links for downloading the attachments on the right side of this page in the orange rectangle. Please see the attached screenshot.
Thanks !
Please update the sentence "3. Download the BPLFinder.exe tool (you will find it at the bottom of this page)"
Thank you for your feedback. I have updated this sentence. We appreciate your cooperation.
Attachments are on the bottom of the page (29/01/2016)
Quite right! We moved them to the bottom of the page.
Sure, in the solution message it's still written "at the right".
"3. Download the BPLFinder.exe tool (you will find it at the right of this page in the Attachments section), launch it and click the "Start Search" button. It will display the remaining files list. Delete listed files;"
Thanks. I have corrected the solution text.