Resolution record (2)-Oracle prompts "the specified identifier cannot be resolved"

[Error description]
1. Use nunit to test the Oracle connection and prompt that the specified identifier cannot be parsed.
2. Create a windowsapplication test project and use the same connection string, but the connection is successful.

[Error environment]
1. vs2005
2. Windows2003 SP1
3. ODP. Net 10.2

[Error cause]
During the nunit test, I downloaded a test version of nnit2.4. During installation, the folder contains some special characters and the folder name contains spaces.

[Solution]
Accessing OracleProgramIt must be in the folder path without special characters or spaces.
See render's blog: http://render.cnblogs.com also has this method.