The problem background

IDE：VS 2010 pro ;
Project type ：MFC;
Solution ： Multi project solutions ;
Version control tools ：SVN;

Problem description

The project of the laboratory is to use MFC The engineering of , First of all, I start from SVN Server check out Complete project on , The first question I met was “ The source control provider associated with the solution could not be found ”;
After solving the first problem, try to debug the main project , The second problem —— Project documents “ ” Has been renamed or is no longer in the solution ; Then try other projects , An error window will pop up when it is found ： Project documents “ ” Has been renamed or is no longer in the solution . After debugging, it doesn't run （CTRL+F5）, The error window still pops up .

Solution process and method

The first question is —— The source control provider associated with the solution could not be found

It's literally , No source control solution found , I found some solutions on the Internet , Finally, I decided to try to set source control to none . The operation method is ： Click... In the upper menu bar ： Tools –> Options –>Source Control–> The current source code control plug-in selection “ nothing ”. But it doesn't really solve my problem , Because I want to use management tools SVN, Instead of not using , But I came up with this method , Why does my source control plug-in only have “ nothing ” and “visual studio team fundatation server” Two options , I installed it SVN ah .
Later, I searched on the Internet , The original installation was just SVN, This is a SVN The main body of , Mainly used to manage code , But this subject is not related VS, Also install plug-ins AnkhSvn. After installed , The source control plug-in can choose AnkhSVN 了 .

The second question is —— Project documents “ ” Has been renamed or is no longer in the solution

There are many ways to query on the Internet , Many methods say that all projects in the solution are removed , Then re add the project to the solution or remove the reference of the project and re add . But there are two reasons why I haven't dared to try , First, I used it for the first time SVN, Many blogs don't have a picture for a paragraph , Although I can understand , But I'm also afraid that my operation will cause unpredictable problems and trouble the team （ In fact, as long as you don't submit the version , How to operate locally will not affect the code on the server ）; Second, most methods are copied from each other , I remember several blog words without change , Nor does it explain the principle , The effectiveness of the method is in doubt .
Finally decided to go bing Search on the International Edition , Sure enough stackoverflow, After reading a few articles, I can understand , I also understand the principle . Simply speaking , In a multi project solution , There may be a reference relationship between various projects ,IDE How to understand references between projects ？ Each item has an identity （ID）, Similar to this form ,9CF2493A-0C79-88E7-12ED-7DFAEBA8535B, You can put .sln Open and view each item with a text editor ID. The reason for this problem is the reference in the project ID With the actual situation of the project ID Different , My solution is very simple, which is to combine the two methods , First remove all projects from the solution , Remember to remove all , I can't even remove parts , So removing it all must be the safest way . Delete all and add existing projects to the solution again , Adding a project is immediately followed by generating the project . If the project does not have a referenced project , There will be no problem with generation , If there is a referenced project , There will still be “ Project documents “ ” Has been renamed or is no longer in the solution ” This problem , Because of the... Of the referenced project ID Not updated yet , So we have to Delete reference , Be sure to remember which references are there before deleting , Add the reference again . Until all projects are added and built .
Because it's too troublesome to type the secret related screenshots of the project , Let me dictate the removal of items 、 Add the project 、 Methods of deleting and adding references .

• Remove items ： Left click the item to be removed , Then right-click and select remove... In the pop-up menu , You can also press delete key
• Add the project ： Right click on the solution , Select an existing item from the pop-up menu , Click the project file to be added in the pop-up file dialog box （.vcproj）
• Delete / Add reference ： Right click on the item , Select reference... From the pop-up menu , Just do the corresponding operation according to the button