Is there any way to recover data when a .qgz file will not open?
up vote
4
down vote
favorite
I saved my QGIS project as a .qgz file and then my computer crashed (however I can't confirm that the saving had completed successfully). After restarting the computer, however, the .qgz archive no longer works and crashes QGIS when I try and load it.
The QGIS desktop window begins with the ~"Loading project:" project tracker with the green bar in the bottom panel but stops immediately and freezes the program to the "crash report" window.
If I try and open the archive with 7zip I get an error message "Can not open file '...' as archive".
Is there any way to access or repair information from a .qgz file/archive?
alternatively ... does QGIS save a backup of the archive or just the project file on the computer somewhere similar to the .qgs~ file in the old system?
I get the QGIS crash report shown below:
Stack Trace
zip_source_function_create :
zip_source_function_create :
QgsZipUtils::unzip :
QgsProjectArchive::unzip :
QgsProject::unzip :
QgsProject::read :
QgisApp::addProject :
QgisApp::openProject :
main :
BaseThreadInitThunk :
RtlUserThreadStart :
QGIS Info
QGIS Version: 3.2.2-Bonn
QGIS code revision: 26842169e9
Compiled against Qt: 5.9.2
Running against Qt: 5.9.2
Compiled against GDAL: 2.2.4
Running against GDAL: 2.2.4
System Info
CPU Type: x86_64
Kernel Type: winnt
Kernel Version: 6.1.7601
qgis qgis-3.2 archiving data-backup qgz
edited Aug 26 at 22:14
csk
6,730733
asked Aug 24 at 7:10
guestagain
265114
add a comment |
up vote
4
down vote
favorite
I saved my QGIS project as a .qgz file and then my computer crashed (however I can't confirm that the saving had completed successfully). After restarting the computer, however, the .qgz archive no longer works and crashes QGIS when I try and load it.
The QGIS desktop window begins with the ~"Loading project:" project tracker with the green bar in the bottom panel but stops immediately and freezes the program to the "crash report" window.
If I try and open the archive with 7zip I get an error message "Can not open file '...' as archive".
Is there any way to access or repair information from a .qgz file/archive?
alternatively ... does QGIS save a backup of the archive or just the project file on the computer somewhere similar to the .qgs~ file in the old system?
I get the QGIS crash report shown below:
Stack Trace
zip_source_function_create :
zip_source_function_create :
QgsZipUtils::unzip :
QgsProjectArchive::unzip :
QgsProject::unzip :
QgsProject::read :
QgisApp::addProject :
QgisApp::openProject :
main :
BaseThreadInitThunk :
RtlUserThreadStart :
QGIS Info
QGIS Version: 3.2.2-Bonn
QGIS code revision: 26842169e9
Compiled against Qt: 5.9.2
Running against Qt: 5.9.2
Compiled against GDAL: 2.2.4
Running against GDAL: 2.2.4
System Info
CPU Type: x86_64
Kernel Type: winnt
Kernel Version: 6.1.7601
qgis qgis-3.2 archiving data-backup qgz
edited Aug 26 at 22:14
csk
6,730733
asked Aug 24 at 7:10
guestagain
265114
add a comment |
up vote
4
down vote
favorite
up vote
4
down vote
favorite
I saved my QGIS project as a .qgz file and then my computer crashed (however I can't confirm that the saving had completed successfully). After restarting the computer, however, the .qgz archive no longer works and crashes QGIS when I try and load it.
The QGIS desktop window begins with the ~"Loading project:" project tracker with the green bar in the bottom panel but stops immediately and freezes the program to the "crash report" window.
If I try and open the archive with 7zip I get an error message "Can not open file '...' as archive".
Is there any way to access or repair information from a .qgz file/archive?
alternatively ... does QGIS save a backup of the archive or just the project file on the computer somewhere similar to the .qgs~ file in the old system?
I get the QGIS crash report shown below:
Stack Trace
zip_source_function_create :
zip_source_function_create :
QgsZipUtils::unzip :
QgsProjectArchive::unzip :
QgsProject::unzip :
QgsProject::read :
QgisApp::addProject :
QgisApp::openProject :
main :
BaseThreadInitThunk :
RtlUserThreadStart :
QGIS Info
QGIS Version: 3.2.2-Bonn
QGIS code revision: 26842169e9
Compiled against Qt: 5.9.2
Running against Qt: 5.9.2
Compiled against GDAL: 2.2.4
Running against GDAL: 2.2.4
System Info
CPU Type: x86_64
Kernel Type: winnt
Kernel Version: 6.1.7601
qgis qgis-3.2 archiving data-backup qgz
edited Aug 26 at 22:14
csk
6,730733
asked Aug 24 at 7:10
guestagain
265114
I saved my QGIS project as a .qgz file and then my computer crashed (however I can't confirm that the saving had completed successfully). After restarting the computer, however, the .qgz archive no longer works and crashes QGIS when I try and load it.
The QGIS desktop window begins with the ~"Loading project:" project tracker with the green bar in the bottom panel but stops immediately and freezes the program to the "crash report" window.
If I try and open the archive with 7zip I get an error message "Can not open file '...' as archive".
Is there any way to access or repair information from a .qgz file/archive?
alternatively ... does QGIS save a backup of the archive or just the project file on the computer somewhere similar to the .qgs~ file in the old system?
I get the QGIS crash report shown below:
Stack Trace
zip_source_function_create :
zip_source_function_create :
QgsZipUtils::unzip :
QgsProjectArchive::unzip :
QgsProject::unzip :
QgsProject::read :
QgisApp::addProject :
QgisApp::openProject :
main :
BaseThreadInitThunk :
RtlUserThreadStart :
QGIS Info
QGIS Version: 3.2.2-Bonn
QGIS code revision: 26842169e9
Compiled against Qt: 5.9.2
Running against Qt: 5.9.2
Compiled against GDAL: 2.2.4
Running against GDAL: 2.2.4
System Info
CPU Type: x86_64
Kernel Type: winnt
Kernel Version: 6.1.7601
qgis qgis-3.2 archiving data-backup qgz
qgis qgis-3.2 archiving data-backup qgz
edited Aug 26 at 22:14
csk
6,730733
asked Aug 24 at 7:10
guestagain
265114
edited Aug 26 at 22:14
csk
6,730733
asked Aug 24 at 7:10
guestagain
265114
edited Aug 26 at 22:14
csk
6,730733
edited Aug 26 at 22:14
csk
6,730733
edited Aug 26 at 22:14
csk
6,730733
6,730733
asked Aug 24 at 7:10
guestagain
265114
asked Aug 24 at 7:10
guestagain
265114
asked Aug 24 at 7:10
guestagain
265114
265114
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
7
down vote
You should try attacking it with a zip file recovery tool.
I just tried corrupting a QGZ by deleting a few bytes at the end. QGIS crashed (this should possibly be submitted as a bug report so that it can catch corrupt QGZ files). zip can't extract it.
But doing zip -FF project.qgz --out fix.zip produced a fix.zip which contained a project.qgs - that had some of the layer info but was still quite corrupted and QGIS wouldn't load it. Depending on what's in your project file you might have some success. I used zip on the Linux command line, you might find zip repair tools for your operating system elsewhere.
I don't see any backups of QGZ files being made by QGIS. Some time ago I wrote a plugin that saved a backup at regular intervals for a much earlier version of QGIS, there is this one: https://plugins.qgis.org/plugins/autoSaver/ now which might save you in future.
Tip: rename project.qgz to project.zip so that tools can find it.
answered Aug 24 at 8:01
Spacedman
22.3k23449
Thanks mate. Will try some more along these lines. Unfortunately the first windows program I used, after renaming to zip, thought there was no files in there even though the file I have's listed as 165kb which, on reflection, is probably too small to be of value anyway. So I should probably just start recreating it now instead of wasting more time desperately hoping I don't have to. Only 2 days work plus 1 trying to fix it lost! Seems a pretty big problem that, even if I did crash the PC whilst saving (though pretty sure I didn't), QGIS didn't preserve the old one till the new one was created.
– guestagain
Aug 24 at 9:15
add a comment |
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "79"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgis.stackexchange.com%2fquestions%2f293849%2fis-there-any-way-to-recover-data-when-a-qgz-file-will-not-open%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
7
down vote
You should try attacking it with a zip file recovery tool.
I just tried corrupting a QGZ by deleting a few bytes at the end. QGIS crashed (this should possibly be submitted as a bug report so that it can catch corrupt QGZ files). zip can't extract it.
But doing zip -FF project.qgz --out fix.zip produced a fix.zip which contained a project.qgs - that had some of the layer info but was still quite corrupted and QGIS wouldn't load it. Depending on what's in your project file you might have some success. I used zip on the Linux command line, you might find zip repair tools for your operating system elsewhere.
I don't see any backups of QGZ files being made by QGIS. Some time ago I wrote a plugin that saved a backup at regular intervals for a much earlier version of QGIS, there is this one: https://plugins.qgis.org/plugins/autoSaver/ now which might save you in future.
Tip: rename project.qgz to project.zip so that tools can find it.
answered Aug 24 at 8:01
Spacedman
22.3k23449
Thanks mate. Will try some more along these lines. Unfortunately the first windows program I used, after renaming to zip, thought there was no files in there even though the file I have's listed as 165kb which, on reflection, is probably too small to be of value anyway. So I should probably just start recreating it now instead of wasting more time desperately hoping I don't have to. Only 2 days work plus 1 trying to fix it lost! Seems a pretty big problem that, even if I did crash the PC whilst saving (though pretty sure I didn't), QGIS didn't preserve the old one till the new one was created.
– guestagain
Aug 24 at 9:15
add a comment |
up vote
7
down vote
You should try attacking it with a zip file recovery tool.
I just tried corrupting a QGZ by deleting a few bytes at the end. QGIS crashed (this should possibly be submitted as a bug report so that it can catch corrupt QGZ files). zip can't extract it.
But doing zip -FF project.qgz --out fix.zip produced a fix.zip which contained a project.qgs - that had some of the layer info but was still quite corrupted and QGIS wouldn't load it. Depending on what's in your project file you might have some success. I used zip on the Linux command line, you might find zip repair tools for your operating system elsewhere.
I don't see any backups of QGZ files being made by QGIS. Some time ago I wrote a plugin that saved a backup at regular intervals for a much earlier version of QGIS, there is this one: https://plugins.qgis.org/plugins/autoSaver/ now which might save you in future.
Tip: rename project.qgz to project.zip so that tools can find it.
answered Aug 24 at 8:01
Spacedman
22.3k23449
Thanks mate. Will try some more along these lines. Unfortunately the first windows program I used, after renaming to zip, thought there was no files in there even though the file I have's listed as 165kb which, on reflection, is probably too small to be of value anyway. So I should probably just start recreating it now instead of wasting more time desperately hoping I don't have to. Only 2 days work plus 1 trying to fix it lost! Seems a pretty big problem that, even if I did crash the PC whilst saving (though pretty sure I didn't), QGIS didn't preserve the old one till the new one was created.
– guestagain
Aug 24 at 9:15
add a comment |
up vote
7
down vote
up vote
7
down vote
You should try attacking it with a zip file recovery tool.
I just tried corrupting a QGZ by deleting a few bytes at the end. QGIS crashed (this should possibly be submitted as a bug report so that it can catch corrupt QGZ files). zip can't extract it.
But doing zip -FF project.qgz --out fix.zip produced a fix.zip which contained a project.qgs - that had some of the layer info but was still quite corrupted and QGIS wouldn't load it. Depending on what's in your project file you might have some success. I used zip on the Linux command line, you might find zip repair tools for your operating system elsewhere.
I don't see any backups of QGZ files being made by QGIS. Some time ago I wrote a plugin that saved a backup at regular intervals for a much earlier version of QGIS, there is this one: https://plugins.qgis.org/plugins/autoSaver/ now which might save you in future.
Tip: rename project.qgz to project.zip so that tools can find it.
answered Aug 24 at 8:01
Spacedman
22.3k23449
You should try attacking it with a zip file recovery tool.
I just tried corrupting a QGZ by deleting a few bytes at the end. QGIS crashed (this should possibly be submitted as a bug report so that it can catch corrupt QGZ files). zip can't extract it.
But doing zip -FF project.qgz --out fix.zip produced a fix.zip which contained a project.qgs - that had some of the layer info but was still quite corrupted and QGIS wouldn't load it. Depending on what's in your project file you might have some success. I used zip on the Linux command line, you might find zip repair tools for your operating system elsewhere.
I don't see any backups of QGZ files being made by QGIS. Some time ago I wrote a plugin that saved a backup at regular intervals for a much earlier version of QGIS, there is this one: https://plugins.qgis.org/plugins/autoSaver/ now which might save you in future.
Tip: rename project.qgz to project.zip so that tools can find it.
answered Aug 24 at 8:01
Spacedman
22.3k23449
answered Aug 24 at 8:01
Spacedman
22.3k23449
answered Aug 24 at 8:01
Spacedman
22.3k23449
answered Aug 24 at 8:01
Spacedman
22.3k23449
22.3k23449
Thanks mate. Will try some more along these lines. Unfortunately the first windows program I used, after renaming to zip, thought there was no files in there even though the file I have's listed as 165kb which, on reflection, is probably too small to be of value anyway. So I should probably just start recreating it now instead of wasting more time desperately hoping I don't have to. Only 2 days work plus 1 trying to fix it lost! Seems a pretty big problem that, even if I did crash the PC whilst saving (though pretty sure I didn't), QGIS didn't preserve the old one till the new one was created.
– guestagain
Aug 24 at 9:15
add a comment |
Thanks mate. Will try some more along these lines. Unfortunately the first windows program I used, after renaming to zip, thought there was no files in there even though the file I have's listed as 165kb which, on reflection, is probably too small to be of value anyway. So I should probably just start recreating it now instead of wasting more time desperately hoping I don't have to. Only 2 days work plus 1 trying to fix it lost! Seems a pretty big problem that, even if I did crash the PC whilst saving (though pretty sure I didn't), QGIS didn't preserve the old one till the new one was created.
– guestagain
Aug 24 at 9:15
Thanks mate. Will try some more along these lines. Unfortunately the first windows program I used, after renaming to zip, thought there was no files in there even though the file I have's listed as 165kb which, on reflection, is probably too small to be of value anyway. So I should probably just start recreating it now instead of wasting more time desperately hoping I don't have to. Only 2 days work plus 1 trying to fix it lost! Seems a pretty big problem that, even if I did crash the PC whilst saving (though pretty sure I didn't), QGIS didn't preserve the old one till the new one was created.
– guestagain
Aug 24 at 9:15
Thanks mate. Will try some more along these lines. Unfortunately the first windows program I used, after renaming to zip, thought there was no files in there even though the file I have's listed as 165kb which, on reflection, is probably too small to be of value anyway. So I should probably just start recreating it now instead of wasting more time desperately hoping I don't have to. Only 2 days work plus 1 trying to fix it lost! Seems a pretty big problem that, even if I did crash the PC whilst saving (though pretty sure I didn't), QGIS didn't preserve the old one till the new one was created.
– guestagain
Aug 24 at 9:15
add a comment |
Thanks for contributing an answer to Geographic Information Systems Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fgis.stackexchange.com%2fquestions%2f293849%2fis-there-any-way-to-recover-data-when-a-qgz-file-will-not-open%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
