[SOLVED] Lazarus3.0 XMLPropStorage component not work.

[SWM1]

Hello! I installed Lazarus3.0 and tried to compile the working program project into Lazarus 2.2.6. And I faced the problem of accessing the files stored by the XMLPropStorage component.
The File field in the component is ' ./folder_name/filename'. And it works in the latest version of Lazarus, but on 3.0 it gives an error about the impossibility of creating such a file. Any advice please!
And a similar problem occurs when rebuilding the IDE, if you include the LCL widget type - gtk3. Also, Error: /usr/bin/mkdir: cannot create directory '../units/x86_64-linux/gtk3': Permission denied.
OS Linux Mint 21.1.

[jamie]

I am not a linux expert however, something tells me if you run things from SUDO you may have a better chance.

or boot in as root ? or simply give some folders open access.

[TRon]

I am not a linux expert however, something tells me if you run things from SUDO you may have a better chance.

For sure you then would have a better chance but... on Linux that is not the way to go (or any other operating system for that matter).

or boot in as root ? or simply give some folders open access.

The former is also a very bad idea from a safety standpoint the latter is a better suggestion but will also lead to the same insecurities.

I would probably advise to remove both Lazarus installations and re-install with FPCUpDeluxe, making sure that you do not install Lazarus in your system directories but rather at a location where you have full read and write access. FPCUpDeluxe is able to install Lazarus (for example) in your home directory.

[cdbc]

Hi
From personal experience, this is the one to go with:

I would probably advise to remove both Lazarus installations and re-install with FPCUpDeluxe, making sure that you do not install Lazarus in your system directories but rather at a location where you have full read and write access. FPCUpDeluxe is able to install Lazarus (for example) in your home directory.

from @TRon
I installed in my "/home/{mylogin}/laz_3/" and it works like a charm 
Regards Benny

[SWM1]

I myself understood that compilation in gtk3 is not possible due to access rights to Lazarus RAD, but Lazarus is to blame for the XMLPropStorage component. Or something changed in 3.0 with the parsing of local file paths. Because the compiled project works on relative paths in the source directory, but does not work in the RAD.

[SWM1]

Solved!
There was no folder in the run options. When selecting the execution folder, everything worked. And changing the owner of the lazarus folder to the user solved the problem of layout with gtk3.