Devart Forums

Hi,
I have Win7 and Delphi XE2 Update 4 Hotfix 1 (16.0.4504.48759).

I am trying to install PgDAC 3.5.9 and I got following error:
"Setup has detected already installed DAC packages which are incompatible with current version. Please uninstall DAC products."

I already uninstalled previous version of PgDAC, and also checked registry and there is no occurrence of words "pgdac" or "devart". There is no folders on my computer with those words neither.

I downloaded PgDAC 3.0.x, 3.1.x, 3.2.x and also tried to install them. I only managed to install version 3.0.2, but all other installations had same error message.

What should I do?

There can be two different situations:
1. If you have several DAC packages simultaneously installed in RAD Studio XE2 (for example, PgDAC and MyDAC), then in order to install PgDAC 3.5.9 you also have to uninstall all other DAC packages, and install a compatible versions of them. The latest compatible versions are the following: PgDAC 3.5.9, IBDAC 4.5.9, LiteDAC 1.5.2, MyDAC 7.5.9, ODAC 8.5.9, SDAC 6.5.9 and UniDAC 4.5.9.
2. If you have only a previous version of PgDAC installed, then the error may be due to the improper PgDAC uninstallation. Sometimes, PgDAC uninstallation cannot remove packages because they are held by Windows or Delphi.
In this case, try to perform the following steps:
- close your Delphi IDE and uninstall PgDAC;
- search and remove all *dac*160.* files from your computer;
- reinstall PgDAC.

Thank you.

There were *dac* files on my computer, so I deleted them. After that, I installed PgDAC successfully.