Step 1:I select my project in IDE and do Deploy to server.
Step 2: I given my dev org credentials and presee next.
Step 3: Added project archive and destination archive folder
Step 4: Validate Deployment : showing me several errors:
Problem: Property 'shouldOverrideOrgTheme' not valid in version 38.0
Problem: Property 'isNavAutoTempTabsDisabled' not valid in version 38.0
  Problem: c:BR_Carousel:1,1: ParseError at [row,col]:[2,1]
Message: Content is not allowed in prolog.
Problem: Invalid definition for null:CreateCaseController: null

others too.

I have verified my package.xml which have version 43.0. 
I have taken the code from other dev org as a baseline and want to move it to development org for each developer .
Please guide me, how to resolve thie issues ?

Step 1:I select my project in IDE and do Deploy to server.
Step 2: I given my dev org credentials and presee next.
Step 3: Added project archive and destination archive folder
Step 4: Validate Deployment : showing me several errors:
Problem: Property 'shouldOverrideOrgTheme' not valid in version 38.0
Problem: Property 'isNavAutoTempTabsDisabled' not valid in version 38.0
  Problem: c:BR_Carousel:1,1: ParseError at [row,col]:[2,1]
Message: Content is not allowed in prolog.
Problem: Invalid definition for null:CreateCaseController: null

others too.

I have verified my package.xml which have version 43.0. 
I have taken the code from other dev org as a baseline and want to move it to development org for each developer .
Please guide me, how to resolve thie issues ?