[SOLVED] Problem on Linux - Warning : wrong version in ide/version.inc: 1.6.4

[Gizmo]

Just tried to upgrade Lazarus 1.6.2 x64 to 1.6.4 x64 on Linux Mint 17 LTS, 64-bit.

Installation seems to go OK but on launch I briefly get the splashscreen with the cheetah and it says "1.6.4" at the bottom and then I get the usual new installation screen but it says "Welcome to Lazarus 1.6.2". Then there is a red exclamation mark in the left next to "Lazarus" and the messages is "Warning : wrong version in ide/version.inc: 1.6.4" and the selected path in the field above is "/usr/share/lazarus/1.6.4"

So I tried uninstalling everything using

> sudo dpkg --remove packagenames

and tried re-installing fpc, fpc-src and lazarus-project. Same problem. If I click OK to the "Start IDE" button I get a warning that I'll see lots of error, and I indeed do so!

Is it just me or is there a trick or something to get past the problem? 

[Handoko]

You may need to manually do the cleaning up:

- Delete ~/.lazarus, except: editoroptions, environmentoption
- Delete /etc/fp.*
- Delete /usr/share/fpcsrc
- Delete /usr/lib/fpc
- Delete /usr/bin/ppc*

After manually delete those files, restart your computer.

Note:
I keep editoroptions and environmentoption because I want to keep the settings I have made on Lazarus. You should delete them if you really want to remove those settings.

[Gizmo]

Perfect! That worked. Thanks!

[BrainChemistry]

You may need to manually do the cleaning up:

- Delete ~/.lazarus, except: editoroptions, environmentoption
- Delete /etc/fp.*
- Delete /usr/share/fpcsrc
- Delete /usr/lib/fpc
- Delete /usr/bin/ppc*

After manually delete those files, restart your computer.

Note:
I keep editoroptions and environmentoption because I want to keep the settings I have made on Lazarus. You should delete them if you really want to remove those settings.

Ran into the same problem updating Lazarus from version 2.2 to 3.0. Thanks for your solution!

For me it was sufficient to clean the ~./lazarus folder as all the other folders had been updated correctly.