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Error: Failed to save the current project. Error: ProjectService::SaveProjectAsync Failed

Error Message

In some instances, attempting to save a project in ArcGIS Pro fails and returns the following error:

Error:   
Failed to save the current project. Error: ProjectService::SaveProjectAsync Failed
Screen shot of the error message: Failed to save the current project. Error: ProjectService::SaveProjectAsync Failed

Cause

The following are reasons that are known to cause this error: 

  • The file paths used in the project contain spaces
  • The project is made up of raster data with raster functions applied

Solution or Workaround

Depending on the cause, use the following workarounds to resolve this issue:

  • The file paths used in the project contain spaces
Rename the file paths from the folder or database connections used in the project by removing spaces in the path name. To see the project paths, click the Project tab, and go to Options > Current Settings. The paths can be made up of geodatabase connections and custom toolboxes used in the project. Spaces are not supported when naming project files and folders in ArcGIS Pro. A good practice when naming files is to use underscores or CamelCase letters instead of spaces. For more information, refer to ArcGIS Pro Help: Change project settings.
  • The project is made up of raster data with raster functions applied
If the map in the project contains functional rasters, remove any function applied to the raster data before saving the project. For more information, refer to ArcGIS Pro Help: Edit Raster Function. Certain raster file formats are known to cause the error when applying raster functions. Alternatively, convert the raster data to another format if possible to prevent the error using the Raster To Other Format tool.
Note:
It is recommended that all data used in the project comes from the same workspace. Additionally, if using SDE connection files, removing and then re-establishing the connection to the SDE database before saving the project may prevent the error.

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