diff --git a/__tests__/versionutil.test.ts b/__tests__/versionutil.test.ts
index a238688..69681da 100644
--- a/__tests__/versionutil.test.ts
+++ b/__tests__/versionutil.test.ts
@@ -13,6 +13,8 @@ describe('version tests', () => {
   );
 
   each([
+    ['3.x', '3.x'],
+    ['3.*', '3.*'],
     ['3.1.x', '3.1'],
     ['1.1.*', '1.1'],
     ['2.0', '2.0']
@@ -42,7 +44,6 @@ describe('version tests', () => {
     '.2.3',
     '.2.x',
     '1',
-    '2.x',
     '*.*.1',
     '*.1',
     '*.',
diff --git a/dist/index.js b/dist/index.js
index 28caa4a..5e4739a 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -16881,14 +16881,16 @@ class DotNetVersionInfo {
             return;
         }
         //Note: No support for previews when using generic
-        let parts = version.split('.');
+        const parts = version.split('.');
         if (parts.length < 2 || parts.length > 3)
             this.throwInvalidVersionFormat();
         if (parts.length == 3 && parts[2] !== 'x' && parts[2] !== '*') {
             this.throwInvalidVersionFormat();
         }
-        let major = this.getVersionNumberOrThrow(parts[0]);
-        let minor = this.getVersionNumberOrThrow(parts[1]);
+        const major = this.getVersionNumberOrThrow(parts[0]);
+        const minor = ['x', '*'].includes(parts[1])
+            ? parts[1]
+            : this.getVersionNumberOrThrow(parts[1]);
         this.fullversion = major + '.' + minor;
     }
     getVersionNumberOrThrow(input) {
@@ -16906,7 +16908,7 @@ class DotNetVersionInfo {
         }
     }
     throwInvalidVersionFormat() {
-        throw 'Invalid version format! Supported: 1.2.3, 1.2, 1.2.x, 1.2.*';
+        throw new Error('Invalid version format! Supported: 1.2.3, 1.2, 1.2.x, 1.2.*');
     }
     /**
      * If true exacatly one version should be resolved
@@ -17009,7 +17011,7 @@ class DotnetCoreInstaller {
             }
             console.log(process.env['PATH']);
             if (resultCode != 0) {
-                throw `Failed to install dotnet ${resultCode}. ${output}`;
+                throw new Error(`Failed to install dotnet ${resultCode}. ${output}`);
             }
         });
     }
@@ -17037,7 +17039,7 @@ class DotnetCoreInstaller {
             // Sort for latest version
             releasesInfo = releasesInfo.sort((a, b) => semver.rcompare(a['sdk']['version'], b['sdk']['version']));
             if (releasesInfo.length == 0) {
-                throw `Could not find dotnet core version. Please ensure that specified version ${versionInfo.inputVersion} is valid.`;
+                throw new Error(`Could not find dotnet core version. Please ensure that specified version ${versionInfo.inputVersion} is valid.`);
             }
             let release = releasesInfo[0];
             return release['sdk']['version'];
@@ -17058,7 +17060,7 @@ class DotnetCoreInstaller {
                 return versionParts[0] == sdkParts[0];
             });
             if (releasesInfo.length === 0) {
-                throw `Could not find info for version ${versionParts.join('.')} at ${DotNetCoreIndexUrl}`;
+                throw new Error(`Could not find info for version ${versionParts.join('.')} at ${DotNetCoreIndexUrl}`);
             }
             return releasesInfo[0]['releases.json'];
         });
diff --git a/src/installer.ts b/src/installer.ts
index f0b48a2..d0bc4f4 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -30,7 +30,7 @@ export class DotNetVersionInfo {
     }
 
     //Note: No support for previews when using generic
-    let parts: string[] = version.split('.');
+    const parts: string[] = version.split('.');
 
     if (parts.length < 2 || parts.length > 3) this.throwInvalidVersionFormat();
 
@@ -38,8 +38,10 @@ export class DotNetVersionInfo {
       this.throwInvalidVersionFormat();
     }
 
-    let major = this.getVersionNumberOrThrow(parts[0]);
-    let minor = this.getVersionNumberOrThrow(parts[1]);
+    const major = this.getVersionNumberOrThrow(parts[0]);
+    const minor = ['x', '*'].includes(parts[1])
+      ? parts[1]
+      : this.getVersionNumberOrThrow(parts[1]);
 
     this.fullversion = major + '.' + minor;
   }
@@ -60,7 +62,9 @@ export class DotNetVersionInfo {
   }
 
   private throwInvalidVersionFormat() {
-    throw 'Invalid version format! Supported: 1.2.3, 1.2, 1.2.x, 1.2.*';
+    throw new Error(
+      'Invalid version format! Supported: 1.2.3, 1.2, 1.2.x, 1.2.*'
+    );
   }
 
   /**
@@ -187,7 +191,7 @@ export class DotnetCoreInstaller {
     console.log(process.env['PATH']);
 
     if (resultCode != 0) {
-      throw `Failed to install dotnet ${resultCode}. ${output}`;
+      throw new Error(`Failed to install dotnet ${resultCode}. ${output}`);
     }
   }
 
@@ -236,7 +240,9 @@ export class DotnetCoreInstaller {
     );
 
     if (releasesInfo.length == 0) {
-      throw `Could not find dotnet core version. Please ensure that specified version ${versionInfo.inputVersion} is valid.`;
+      throw new Error(
+        `Could not find dotnet core version. Please ensure that specified version ${versionInfo.inputVersion} is valid.`
+      );
     }
 
     let release = releasesInfo[0];
@@ -264,9 +270,11 @@ export class DotnetCoreInstaller {
     });
 
     if (releasesInfo.length === 0) {
-      throw `Could not find info for version ${versionParts.join(
-        '.'
-      )} at ${DotNetCoreIndexUrl}`;
+      throw new Error(
+        `Could not find info for version ${versionParts.join(
+          '.'
+        )} at ${DotNetCoreIndexUrl}`
+      );
     }
 
     return releasesInfo[0]['releases.json'];