Solution for qmake errors caused by Environment Changes During QT creator project migration

1. Problem description: port the QT project from the machine, and the prompt is displayed:

Qt Creator finds a setting file created by other development environments, perhaps from other machines. The user setting file contains specific environment settings and should not be copied to other application environments.
Do you still want to load the setting file?

Select Yes, load the project, and click Run. An error message is displayed:
 
An error occurred while building the project XXX (target: desktop) when the build step 'qmake' is executed

2. solution:

1) set "***. pro. user, and then re-open "***. pro "that is, the original is ***. pro. the user sets a file for his/her machine. After the local machine is opened, the local *** will be automatically created ***. pro. shows the user file:

 

 

2) If the problem persists in the previous step, you can delete the XXXX-Build-Desktop Folder and check whether it works;

 

(Original from: http://blog.csdn.net/fjssharpsword/article/details/7238379)