I assume you followed the upgrade path and at some point had Umbraco 4.6 or 4.7.

The 4.7.1 release had changes to razor. I think you probably have a dll remaining in your bin.

From memory I think it was macro legacy or somethign with the word macro in it.

Easiest way to find out is to get a fresh umbraco install then compare the files.

Thanks Anthony for your prompt reply.

I have double checked all the dlls and compared all the config files multiple times. Please see attached screenshot for error details.

Hi Anthony,

Have you got chance to look into my above post?

Your help would be highly appricated regarding this issue.

Regards, Khuram

Sorry for the late reply.

I think it's because at least 1 of your posts has not got a valid date?

Try unpublishing large chunks of nodes until it doesnt crash.

Hi Anthony,

I have deleted all the posts and then there are no any error at blog main page.

But after created a new blog, I have been getting follwoing error again.

Have you modified/removed any properties to the post or landing doctypes?

If you have, then you can do a fresh install and test each change as you go.

One more thing whenever I add or edit a "uBlogsy - Post" I got following error otherwise all other types have been created successfully.

The only reason why that line of the post service would fail is because of this: 

.OrderByDescending(x => x.GetProperty("uBlogsyPostDate").Value);

Ensure that the uBlogsyPost doctype has this property and that the property alias is exactly the same - case sensitive. Ensure that the posts all have a valid date.

try this...

1. Take a backup of your db before the ublogsy install

2. Install uBlogsy

3. Move uBlogsy to the desired part of your tree.

It should just work

regarding utagsy.... the screen shot has cut off the line number.

Thanks Anthony for your prompt reply.

Here are the line numbers

[NullReferenceException: Object reference not set to an instance of an object.]
   uTagsy.Web.usercontrols.uTagsy.datatypes.uTagsy.SaveSettings() in D:\_PROJECTS\Personal\uBlogsy - Blog\Branches\2.1.0.0\uBlogsy\uBlogsy\usercontrols\uTagsy\uTagsy.ascx.cs:109
   uTagsy.Web.usercontrols.uTagsy.datatypes.uTagsy.OnLoad(EventArgs e) in D:\_PROJECTS\Personal\uBlogsy - Blog\Branches\2.1.0.0\uBlogsy\uBlogsy\usercontrols\uTagsy\uTagsy.ascx.cs:43

Looks like malformed json... delete the json in the utagsy json file.

Have removed the follwoing code in utagsy json file

{"documents":[{"documentType":"uBlogsyPost","tags":["1055_a","1055_b","1055_c","1983_zz"]}]}

then got this error

[NullReferenceException: Object reference not set to an instance of an object.]
   uTagsy.Web.usercontrols.uTagsy.datatypes.uTagsy.LoadSettings() in D:\_PROJECTS\Personal\uBlogsy - Blog\Branches\2.1.0.0\uBlogsy\uBlogsy\usercontrols\uTagsy\uTagsy.ascx.cs:77
   uTagsy.Web.usercontrols.uTagsy.datatypes.uTagsy.OnLoad(EventArgs e) in D:\_PROJECTS\Personal\uBlogsy - Blog\Branches\2.1.0.0\uBlogsy\uBlogsy\usercontrols\uTagsy\uTagsy.ascx.cs:46
   System.Web.UI.Control.LoadRecursive() +74
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Control.LoadRecursive() +146
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207

Ah.

I meant to delete any bad json in the file.

Just start with this:

{"documents":[{"documentType":"uBlogsyPost","tags":[]}]}

Hi Anthony,

I had tried but again got old same error

****************************

[NullReferenceException:Object reference notset to an instance of an object.]
uTagsy.Web.usercontrols.uTagsy.datatypes.uTagsy.SaveSettings()in D:\_PROJECTS\Personal\uBlogsy -Blog\Branches\2.1.0.0\uBlogsy\uBlogsy\usercontrols\uTagsy\uTagsy.ascx.cs:109
uTagsy.Web.usercontrols.uTagsy.datatypes.uTagsy.OnLoad(EventArgs e)in D:\_PROJECTS\Personal\uBlogsy -Blog\Branches\2.1.0.0\uBlogsy\uBlogsy\usercontrols\uTagsy\uTagsy.ascx.cs:43

*******************************

Any other Idea?

Thanks,

When I tried to update any exisitng post I got this error

Invalid JSON primitive: a.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: Invalid JSON primitive: a.

Source Error:

Stack Trace:

[ArgumentException: Invalid JSON primitive: a.]
   System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject() +578548
   System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth) +263
   System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer) +80
   System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit) +44
   System.Web.Script.Serialization.JavaScriptSerializer.DeserializeObject(String input) +13
   uTagsy.Web.usercontrols.uTagsy.datatypes.uTagsy.SaveSettings() in D:\_PROJECTS\Personal\uBlogsy - Blog\Branches\2.1.0.0\uBlogsy\uBlogsy\usercontrols\uTagsy\uTagsy.ascx.cs:109
   uTagsy.Web.usercontrols.uTagsy.datatypes.uTagsy.OnLoad(EventArgs e) in D:\_PROJECTS\Personal\uBlogsy - Blog\Branches\2.1.0.0\uBlogsy\uBlogsy\usercontrols\uTagsy\uTagsy.ascx.cs:43
   System.Web.UI.Control.LoadRecursive() +74

Did you resolve this issue?

If not, check for jsus errors in your browser console. 

Did you ever resolve this issue re uBlogsy and uTagsy?  I seem to have the same issue now.

Allan check for js errors in your browser console when you click save/publish

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