After installing SQL Server developer edition, Business Intelligence Studio starts looking for file devenv.exe.
To resolve this issue:
1. You should make sure that Visual Studio is still installed.
2. If you didn't previously have VS installed, the BI Dev Studio installation will install a VS shell called Visual Studio Premier Partner Edition.
3. Look in Add or Remove Programs for “Microsoft Visual Studio Premier Partner Edition”. If you don't find any entry for Visual Studio go to the location for SQL Server setup and run \Setup\vs_setup.exe. (Usually in CD #2 under setup)
4. After VSShell is installed repair the BI Studio installation by running the following from the command line from the .\Tools directory: start /wait setup.exe /qb REINSTALL=SQL_WarehouseDevWorkbench REINSTALLMODE=OMUS