AgilePoint Web Part Error: One of the Properties of the Web Part has an Incorrect Format

Error

Error [2]

Web Part Error: One of the properties of the Web Part has an incorrect format. Windows SharePoint Services cannot deserialize the Web Part. Check the format of the properties and try again.

Error [1]

Web Part Error: One of the properties of the Web Part has an incorrect format. Windows SharePoint Services cannot deserialize the Web Part. Check the format of the properties and try again.

Steps to Reproduce

Add the AgilePoint Web Parts for SharePoint. The error above is displayed.

Details

Lack of permissions for application pool account can cause Web Parts to not display on home page

If the account used for authenticating the application pool for Windows SharePoint Services does not have read and write permissions to the directory that Windows uses for temporary files, Web Parts may not display properly. When this occurs, the following error message appears:

Web Part Error: One of the properties of the Web Part has an incorrect format. Windows SharePoint Services cannot deserialize the Web Part. Check the format of the properties and try again.

1. Locate the system temporary directory.
   1. Right-click My Computer, and then click Properties.
   2. On the Advanced tab, click Environment Variables.
   3. In the System variables list, note the directories for TEMP and TMP.
2. Go to the directories listed for TEMP and TMP.
   1. Click Start, and then click Run.
   2. Type a path to folder that contains the folder associated with TEMP and/or TMP, and then click OK.
3. Right-click on the folder for the temporary directory, and then click Sharing and Security.
4. On the Security tab, verify that the application pool account for the content virtual server has Read and Write permissions in each of the directories. (I.e. Check if the service account used for the Application Pool identity of the virtual server has read/write permissions on the TEMP/TMP directories as mentioned above.)