Project JZKJ. Exe raised exception class EAccessViolation with message 'Access

Violation at address 005 d1171. Read of address 00000000 '. Process stopped. Use the

Step or Run to continue.

What is causing the problem, please give directions! Thank you very much!

CodePudding user response:

Access pointer errors, in a certain period of visited a null pointer

CodePudding user response:

Tracking code
Pointer assignment or have released the NULL values,

CodePudding user response:

Seemingly visited uninitialized object,

CodePudding user response:

Before I met this kind of question is basically your pointer pointing to the wrong address; Check the program

CodePudding user response:

Code can't debugging, debugging is not directly!

CodePudding user response:

There should be a hanging straight needle, you check, not NULL

CodePudding user response:

Debugging the program, the pointer access problems, may be no initialization or pointer assignment or NULL