Can't save work - unhandled exception: exception has been thrown by the target of an invocation

[Rick Hayford]

July 26, 2015 - This appears to be the same bug reported in 2010 as # 603458 and in 2012 as # 704265. My reason for reporting it as a "NEW" bug is because it is now a few years later and it's showing up in the latest version of Pinta (version 1.6). The only thing that is different this time from the two previous reports and fixes is that it occurs after I've been working for a couple of hours or more and have saved my work multiple times already (with the other occurrences, the problem seemed to happen by the second (or so) save ( in order words, previously it was happening early on).

[grofaty (grofaty)]

@Rick, I have encountering several this "can't save work" problems in resent years in several Pinta releases, but it was never (in my case at least) a problem in "save" operation itself, but in some other problem (bug) happening at least one action before save. I always got some exception error and then when save was performed it couldn't be done, because of the exception happening before it. I assume this is the same in you case.

It would be nice if you could figure it out what are the exact steps that triggered exception and then fail of save after. That would really help to debug and fix a problem.

I also suggest to download latest development version (currently pretty stable - fixed some v1.6 bugs, maybe your problem arelady fixed). If using Windows download file under "Windows" button and if using Linux or OS-X then download "Zip" file extract it and run it using command: mono Pinta.exe.

P.S. You have made a correct decision and open a new bug, because both bugs in your posts are marked fixed and fix of specific "save" problems were already released. So you problem is most probably a new problem.

[grofaty (grofaty)]

@Rick, Pinta development version can be downloaded from: http://forge.pinta-project.com/

[Rick Hayford (rickbarb)]

grofaty,

Thank you for taking the time to contact me in regard to the problem I
encountered with Pinta

1.6. I have a few thoughts I'd like to share with you, and will do so
trying to respect your time

by being as brief as possible.

First off, I got into computers back in the early 1980's, and have over
the years worked with

systems running CPM, various Apple OS's, and Windows. Some time in the
mid to late 1990's I

became aware of Linux, and though I really wanted to explore it, I
simply didn't have the time.

Three weeks ago I decided enough was enough -- it was time to learn
Linux by making it my

day-to-day OS; I bought a refurbished Dell desktop, downloaded and
installed Linux Mint 17.2,

and am trying my best not to turn on my Windows machine for anything.
I'm telling you this

because much of what I do with computers has to do with graphics, so to
stay immersed in

Linux and not go back to Windows, I need for Pinta to work. At the same
time, I am at best a

novice newbie when it comes to Linux, which will unfortunately limit my
ability to try things

you might suggest, or provide you to details about the interaction of
the OS and the software.

Once I had Mint installed and configured, the first thing I did was use
the Synaptic Package

Manager to install Pinta -- since I do a lot of pixel level work, I
chose Pinta because it's a nice

equivalent to the Windows paint program named Paint-dot-Net. I have to
tell you, though,

that I was surprised that the version of Pinta that was downloaded and
installed by the

Synaptic Package Manager came with no Curved Line tool; an absolute must
for me. As a

result, I went to the Pinta home page to find out if there was some
documentation on a way to

force the program to draw curved lines (apart from circles and ovals);
what I found was the

announcement of the release of Pinta 1.6, featuring (among other things)
the Curved Line tool.

  I immediately used the Synaptic Package Manager to uninstall Pinta 1.3,
then used the

Terminal commands (apt-get) detailed on the Pinta website to download
and install Pinta 1.6.

Pinta 1.6 is perfect for what I need to do, if it can just get past the
save issue.

The bug that I reported on July 26th was in fact its second occurance
for me. The day before

(July 25th) I had been working in Pinta for about four hours when it
first occured -- when I

clicked the button to report the bug I was expecting what often occurs
in Windows;

specifically, that the bug report would be sent automatically, whereas I
was unexpectedly

taken to a website that was a series of bug reports. At that point I
did not notice the button in

the upper corner that I needed to click to enter my bug report, so that
initial encounter went

unreported -- when the problem came up the second time (July 26th), I
studied the website a

little more closely, because I wanted to report the bug, which will
hopefully lead to a solution

so I can continue my use of Linux and not have to go back to Windows (I
don't dislike

Windows, I just want to learn Linux).

Anyway, let me explain to you what I was doing both times when the
unhandled exception

came u...