Mondrian Error:Internal error: Virtual file is not readable

[shahidwin89]

I am new to jasper and while generating olap view, in the last step wheb  mdx query is to be entered and submitted, i am getting the following error

The following is not a valid MDX query: Mondrian Error:Internal error: Virtual file is not readable: repoint:/analysis/views/working1

 

this is the query

SELECT {
    [Measures].[product NUMBER],
    [Measures].[class NUMBER]
} ON COLUMNS, {
    [Product].firstChild // OR [Product].lastChild
} ON ROWS FROM Products;

it works fine in olap workbench4.0.0

and this is the olap content

<?xml version="1.0"?>
-<Schema name="Foodmart">-<Cube name="Products" enabled="true" cache="true"><Table name="product" alias=""> </Table>-<Dimension name="Product" foreignKey="product_id" type="StandardDimension">-<Hierarchy name="" hasAll="true"><Level name="Brand" uniqueMembers="false" column=" brand_name" table="product"> </Level><Level name="Name" uniqueMembers="false" column="product_name" table="product"> </Level><Level name="SKU" uniqueMembers="false" column="sku" table="product"> </Level></Hierarchy></Dimension><Measure name="product number" column="product_id" visible="true" aggregator="distinct-count"> </Measure><Measure name="class number" column="product_class_id" visible="true" aggregator="distinct-count"> </Measure></Cube></Schema>

 

[udidav]

See http://community.jaspersoft.com/questions/533618/virtual-file-not-readable