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Invalid File: No JSON object could be decoded

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GNS33525

Post subject: Invalid File: No JSON object could be decoded

Posted: Tue May 27, 2014 8:39 pm

Joined: Tue May 27, 2014 8:34 pm
Posts: 2

I am using the Alpha 5 version and I receive the error listed in the subject when I load a .net file using the "open project" option. This .net was provided by CBTNuggets but they are clueless about help for it. Not sure if I am doing something incorrectly or not.

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claydon_dan

Post subject: Re: Invalid File: No JSON object could be decoded

Posted: Wed May 28, 2014 8:59 am

Joined: Sun Sep 16, 2012 9:55 pm
Posts: 541
Location: England

I expect the .net file you have from CBTNuggets is in the old dynagen format. GNS3 v1 uses a completely new file format based on JSON

So you would have need to manually recreate the topology for use with the new GNS3.

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Daniel
Forum Moderator & Debian Package Maintainer for GNS3, Dynamips & VPCS.
Standalone DEB Packages are available from http://gns3.serverb.co.uk - To be updated!

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GNS33525

Post subject: Re: Invalid File: No JSON object could be decoded

Posted: Thu May 29, 2014 1:27 pm

Joined: Tue May 27, 2014 8:34 pm
Posts: 2

Yep, realized what was wrong when it loaded correctly in the production version of GNS3. Thanks for the replay.

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actionmystique

Post subject: Re: Invalid File: No JSON object could be decoded

Posted: Thu Jul 31, 2014 8:25 am

Joined: Fri Dec 02, 2011 2:12 pm
Posts: 120
Location: Paris

I hope a tool will be provided to perform an automatic conversion between old and new format when necessary.
Otherwise GNS3 v1 adoption will most certainly be hindered.

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i7 4700MQ quad-core 2.6 Ghz and 16 GB RAM
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claydon_dan

Post subject: Re: Invalid File: No JSON object could be decoded

Posted: Thu Jul 31, 2014 8:40 am

Joined: Sun Sep 16, 2012 9:55 pm
Posts: 541
Location: England

actionmystique wrote:

I hope a tool will be provided to perform an automatic conversion between old and new format when necessary.
Otherwise GNS3 v1 adoption will most certainly be hindered.

It is in the pipeline... being written currently by myself.

It will be a standalone tool to convert the old .net topologies to the new JSON format. I hope to make a release of this soon-ish, though I do expect there to be a lot of bugs and missing items!

Keep yours on the forum... I shall make a post when I'm ready to release it

_________________
Daniel
Forum Moderator & Debian Package Maintainer for GNS3, Dynamips & VPCS.
Standalone DEB Packages are available from http://gns3.serverb.co.uk - To be updated!

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actionmystique

Post subject: Re: Invalid File: No JSON object could be decoded

Posted: Thu Jul 31, 2014 9:14 am

Joined: Fri Dec 02, 2011 2:12 pm
Posts: 120
Location: Paris

Thanks, but if you release the news on a new thread in GNS3 forum, how can we be notified?

How about also announcing it in this thread: https://learningnetwork.cisco.com/message/420181#420181Thus all people studying for CCNP on CLN will automatically be notified.

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claydon_dan

Post subject: Re: Invalid File: No JSON object could be decoded

Posted: Thu Jul 31, 2014 10:11 am

Joined: Sun Sep 16, 2012 9:55 pm
Posts: 541
Location: England

Thanks for the hint! I shall indeed make a post on there just when I have something to release!

_________________
Daniel
Forum Moderator & Debian Package Maintainer for GNS3, Dynamips & VPCS.
Standalone DEB Packages are available from http://gns3.serverb.co.uk - To be updated!

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actionmystique

Post subject: Re: Invalid File: No JSON object could be decoded

Posted: Thu Jul 31, 2014 10:13 am

Joined: Fri Dec 02, 2011 2:12 pm
Posts: 120
Location: Paris

Great ;)

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claydon_dan

Post subject: Re: Invalid File: No JSON object could be decoded

Posted: Mon Aug 11, 2014 11:41 am

Joined: Sun Sep 16, 2012 9:55 pm
Posts: 541
Location: England

Please see topic11562.html for more details

_________________
Daniel
Forum Moderator & Debian Package Maintainer for GNS3, Dynamips & VPCS.
Standalone DEB Packages are available from http://gns3.serverb.co.uk - To be updated!

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