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Marc G.ax1040Marc G.ax1040 

Code Validation Error before deployment

I am using change set to deploy my code to production so before i do that , i am validatingn my code.
Then, when i validate the components which includes a visual force page, apex class and test class for that apex class it says validtion failed bcos of an error. What's confusing me is why is the validation failing bcos of a completely different test class which i m not working with. Is this error because of pre- existing failure of test case or if  really my code is causing this error. 
My unit test cover 95% of code. Please help

try to include the failed test class and deploy






screen shot the error so that we can scan through it


The Validation step is done against PROD org using whatever is in PROD org plus your change set.  Validation uses all test cases, not just those you are deploying.


Thus, while the entire test suite may run fine in sandbox/dev org; the combination of what you are deploying plus what is also present in the PROD org will apply against the test suite in PROD




a) Your test methods in Sandbox are not 'PROD neutral' or

b) You aren't deploying everything you need in the change set