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Error: Failed to open the project. Error opening mobile cache

Error Message

When using Mobile Project Center to create a mobile project with Mobile Cache, the mobile project could not be opened with ArcGIS Mobile with the following error:
"Error - Failed to open the project. Error opening mobile cache".

Cause

The Windows Mobile Package file (.wmpk) created with Mobile Project Center does not contain a mobile cache.

Solution or Workaround

Copy the contents of the existing MobileCache folder to the installed mobile project folder (MobileProject\MobileCache).

  1. Open ArcGIS Mobile > Application Settings. Use this location to add additional folders for storing mobile projects on the Desktop.

    For example, on Windows 2008 Server the default project folder is:
    C:\Users\<user>\AppData\Local\ESRI\ArcGIS Mobile

  2. Create a mobile cache using the 'Generate Mobile Map' geoprocessing tool, and save the MobileCache folder to a location on disk.

    Create a mobile project ('test.wmpk', for example) with Mobile Project Center.
  3. Double-click the .wmpk file to open the ArcGIS Mobile project.

    ArcGIS Mobile asks which project folder to install the project to.
  4. When opening the project, the error reads: "Failed to open the project. Error opening mobile cache". Click OK to close ArcGIS Mobile.
  5. In Windows Explorer, open the C:\Users\<user>\AppData\Local\ESRI\ArcGIS Mobile folder (or any folder specified in step 3); there is a new folder "P_test" created.

    Open this folder and there is an empty folder called "MobileCache". Copy the content from the existing MobileCache folder (see Step 2) to this folder.
  6. These files can also be copied to a mobile device. The default project folder is:

    \My Documents\ArcGIS Mobile

  7. Use ArcGIS Mobile to open the project again. The mobile cache is now available to the project.