title: executing a caml query to get a lookup field : "Cannot complete this action.Please try again."?
body: <p>It is my caml query code to get the value of a lookup field in SharePoint 2016 on-premises (CSOM).</p>
  
  <pre><code>&lt;View&gt;
                                  &lt;Query&gt;
                                      &lt;Where&gt;
                                          &lt;Eq&gt;
                                              &lt;FieldRef Name='myLookupField' LookupId='TRUE'/&gt;
                                              &lt;Value Type='Lookup'&gt;18456&lt;/Value&gt;
                                          &lt;/Eq&gt;
                                      &lt;/Where&gt;
                                  &lt;/Query&gt;
                              &lt;/View&gt;
  </code></pre>
  
  <p>tried removing this part "LookupId='TRUE'" but still get this exception:
  "Cannot complete this action. Please try again."
  I run this caml query in U2U caml query builder but it works.</p>