Existing code for AccountContactRelations, now has errors I have an existing piece of code that looks for geolocation for existing leads.   for (Lead l : leads) {     System.debug(l.Id);     // Check if Lead was created or Updated for IC_Campaign_Eligible__c in last 24 Hours     List&lt;LeadHistory&gt; leadHistoryValues = IDtolhist.get(l.id);      if (!leadHistoryValues.isEmpty()) {         Double latitude = l.Latitude;         Double longitude = l.Longitude;         l.Status = 'ICReady';         if(l.MG__c == NULL || l.MG__c == ''){             List&lt;Account&gt; accounts = new List&lt;Account&gt;(                 [SELECT Id, Name, DISTANCE(ShippingAddress, GEOLOCATION(:latitude, :longitude), 'mi' ) Dist,                     (SELECT ContactId, Contact.Name, Contact.PCP_Counter__c,                              Contact.Gender__c                        FROM AccountContactRelations                        WHERE Contact.Include_in_IC_Campaign__c = TRUE                        ORDER BY Contact.PCP_Counter__c ASC NULLS FIRST)                     FROM Account                      WHERE ShippingLatitude != null                     ORDER BY DISTANCE(ShippingAddress, GEOLOCATION(:latitude, :longitude ),'mi')]);   This was written by someone else and yes - does contain a loop in a loop but...  We are getting an issue with the AccountContactRelation object reference.  This is the error:     Contact.PCP_Counter__c, Contact.Gender__c FROM AccountContactRelations   WHERE Contact.Include_in_IC_Campaign__c                                                  ^ ERROR at Row:2:Column:145 Didn't understand relationship   'AccountContactRelations' in FROM part of query call. If you are   attempting to use a custom relationship, be sure to append the '__r'   after the custom relationship name. Please reference your WSDL or the   describe call for the appropriate names.   This doesn't make sense. The Object is a standard object; I'm not adding __r in this case. Embedded soql queries work so --- but not in this case...  Can anyone give me a hint as to what may be wrong?  Edit: This is not a duplicate of the other post: This class has been working in production for over a year. It's a scheduled batch class and I was turning on the schedule in full sandbox to test a change in another class but the schedule wouldn't take because of issues in this class (which has not been modified since API V41)
Didn't understand relationship 'AccountContactRelation' in FROM part of query call I'm getting the following error message:     System.QueryException: Didn't understand relationship 'AccountContactRelation' in FROM part of query call. If you are attempting to use a custom relationship, be sure to append the '__r' after the custom relationship name. Please reference your WSDL or the describe call for the appropriate names.   Select Email, Id, (Select ContactId, AccountId From AccountContactRelation) From Contact  In AccountContactRelation object there are two lookup fields for Account and for Contact.  Please advise how to avoid such error message?
Is it acceptable to change the vid column of a term programmatically in the database? How can I approach implementing the following in Drupal 7?  What I need to do is create a module which defines a new fieldable entity, called 'Company'. I have a list of, let's say, 20 fields that need to be filled out by each Company instance. These questions are predefined and some may contain custom validation.  At the moment, I'm at the point when I can add new fields to the Company entity. This works fine at the moment. My issue is that I need all these fields to be there as soon the module is installed, so adding them via the interface isn't an option.  I was wondering how can I approach this? I'd assume it comes down being able to do what can be done using the 'Manage Fields' UI programmatically. Is it Safe to Delete Files From /var/tmp? I wanted to send a single email to different users. 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I want to take into consideration:   Major web font faces (i.e. Arial, Verdana, Georgia, Times) A range font sizes (i.e. 8px-24px) Space between columns Is there a mass spectrometer software that can measure the mass of a proton I am trying to make folder that everyone can view and can't copy,modify.    For all answers.I thinking about specially ms office files. I tried following methods  Software  - copy protect    - anti copy    This method can't protect save as and upload  MS office macro    Users can enable,disable macros.  MS office restriction    This is best choice but can't protect from file uploading.   Almost I found the solution. Way is combination of MS office restriction and restrict access from browsers using firewall or antivirus. But I don't exact how to do this. Linux file access monitoring Is there any way in unix to find out who accessed certain file in last 1 week? It may be user or some script ftp it to some other place. Can I get a list of user name who accessed certain file? How can I find out who is accessing particular file?? How do I migrate an SVN repository with history to a new Git repository? Global variables in AngularJS On SO, when I'm scrolling through "questions" some have a yellow background.  Is this intuitive to everyone but me?  What is the yellow background trying to tell me about this particular question? How to create a timeline with LaTeX? What is the reason that the value "47" is so popular in electrical engineering? Repeated Iteration of a 2x2 matrix Suppose I am given a $2$x$2$ matrix $A=$ \begin{pmatrix} a &amp; b \\ c &amp; d \end{pmatrix}  And an initial vector $x_n$ = \begin{pmatrix} x_0 \\ y_0\end{pmatrix}.  Under repeated iteration $x_{n+1} = Ax_n$, we find that $x_{n+1}$ converges to a line in the direction of the $eigenvector$  of $A$ of the form $X$= $[u,mu]$ where $m$ is the slope of the line.  I know that this process somehow also involves the largest $eigenvalue, \lambda,$ of $A$, though I am unsure how it connects.  My question is: How does the largest eigenvalue connect to this repeated iteration, how do I find the slope of the line of convergence $m$, and what is meant by the "direction of the eigenvector"? Bounty not awarded automatically — bug? How can I reset $PATH to its default value in Ubuntu? I accidentally unset all the directories of $PATH while trying to add a new one in ~/.bashrc. I opened a new terminal window as I was editing and now $PATH is empty. I'm worried if I boot from another drive to find the $PATH I won't be able to boot into this drive again.  Basically, what is the default result of echo $PATH? Can I rename the wp-admin folder? Is it possible to rename the wp-admin folder?  I know I could just rename it, but unless it's supported by the code lots of things would break.  If I use a custom folder name, it will make it slightly more secure, security by obscurity and all that. Total time derivatives and partial coordinate derivatives in classical mechanics The adverb "quite" has the following meanings :     1: wholly, completely ("not quite   finished")      2: to an extreme : positively "quite   sure" —often used as an intensifier   with a "quite a swell guy" "quite a   beauty"      3: to a considerable extent : rather   ("quite near")   My understanding is that #1 and #2 conflict with #3. For example, when you say "She's quite right", do you mean "She's completely right" or "To a considerable extent, she's right"? Notice that in the latter case you're not saying that she is completely right.  Another example is "I'm quite sure". Does it necessarily mean "I'm completely sure"?   Does the word really have conflicting meanings that can possibly cause ambiguity? Or am I missing something? For sets $A,B$, let $|A|\leq^*|B|$ say that there exists an onto map $f:B\rightarrow A$ or $A=\emptyset$.   My question is, is $$\forall A,B(|A|\leq^*|B|\longrightarrow |A|\leq|B|)$$ equivalent to the axiom of choice?  Thanks